{"product_id":"2013-2016-for-audi-a4-s4-b85-s-line-diffuser-with-tailpipe","title":"2013-2016 For Audi A4 S4 B8.5 S line diffuser with tailpipe","description":"\u003ch2\u003e\u003cspan\u003eProduct Description\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3\u003e\u003cspan\u003eOverview\u003c\/span\u003e\u003c\/h3\u003e\n\u003cblockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eTransform the rear profile of your \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e2013–2016 Audi A4 B8.5 S‑Line or S4\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e with this \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eS4‑style rear diffuser\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e complete with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edual tailpipe exhaust tips\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Designed specifically for the facelifted B8.5 platform (2013–2016), this diffuser replaces your factory rear valance with the aggressive, sporty look of the S4 — featuring a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003egloss black UV‑stabilized ABS polymer construction\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, aggressive honeycomb design, and \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edual‑outlet exhaust openings\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e that dramatically enhance the visual impact of your rear end.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003eThe B8.5 facelift brought sharper styling and updated bumpers to the A4 lineup. This S4‑inspired rear diffuser builds on that foundation, giving your A4 S‑Line a more commanding presence from every angle while improving rear‑end aerodynamics. The S‑Line bumper is a direct carryover from the S4, allowing A4 S‑Line owners to achieve the same aggressive dual‑exhaust look as the factory S4 without any body‑work modifications\u003c\/span\u003e\u003ca href=\"https:\/\/forums.audizine.com\/threads\/diffuser-rear-valence-options-for-b8-5-a4-s-line.978092\/#post-14965984\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. Factory S‑Line and S4 rear diffusers are physically incompatible with standard (non‑S‑Line) bumpers, so this diffuser is specifically designed for vehicles with the S‑Line exterior package\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eCritical Fitment Note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This diffuser is exclusively for \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAudi A4 B8.5 S‑Line (2013–2016) and S4 models\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. It will \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNOT\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e fit Non‑S‑Line (standard) A4 bumpers or pre‑facelift B8 (2008–2012) models. The S‑Line\/S4 rear bumpers are different from standard A4 bumpers, and the exhaust opening cutouts are not compatible without verification\u003c\/span\u003e\u003ca href=\"https:\/\/canautoperformance.com\/products\/b8-5-audi-s4-carbon-fiber-diffuser-v1\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eYou must have the factory S‑Line exterior package (or be an S4) for this to fit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eComplete 1‑Stop Conversion Kit:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Includes rear diffuser + dual exhaust tips + self‑tapping screws + 3M VHB tape + installation manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eAerodynamic Benefits:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The sculpted honeycomb design helps smooth airflow, reduce turbulence, and enhance rear‑end stability at higher speeds — a subtle but real performance‑oriented benefit that many owners notice after installation\u003c\/span\u003e\u003ca href=\"https:\/\/eurobahndynamics.com\/products\/audi-b8-5-s4-a4-kb-style-carbon-fiber-rear-diffuser?pr_prod_strat=e5_desc\u0026amp;pr_rec_id=d2d84dbd8\u0026amp;pr_rec_pid=8405140701425\u0026amp;pr_ref_pid=8405137752305\u0026amp;pr_seq=uniform\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.amp-z.com\/Rear-Bumper-Spoiler-Diffuser-Valance-Lip-For-Audi-A4-B8.5-Sline-Sedan-2013-2016.html\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eServing both individual enthusiasts (B2C) and businesses (B2B):\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e✅ US warehouse for fast shipping\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e✅ CE certified for quality assurance\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e✅ 1‑year warranty for peace of mind\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e✅ Factory direct – competitive pricing\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e✅ Dropshipping \u0026amp; wholesale programs available\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e✅ Custom OEM\/ODM orders welcome\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003e5 Key Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003e1. Aggressive S4 Style Design\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eGive your A4 B8.5 S‑Line or S4 the sharp, sporty look of the S4. The aggressive dual‑outlet design and sculpted lines create a bold, OEM+ appearance that dramatically enhances the rear profile. This diffuser was engineered and designed specifically for the B8.5 S‑Line bumper to add more aggression to the rear of your car while matching the factory appeal of your Audi\u003c\/span\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003e2. Complete Kit with Dual Tailpipe Exhaust Tips\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eAll‑in‑one conversion kit includes the rear diffuser and dual exhaust tips — everything you need for a full S4‑style rear transformation\u003c\/span\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. Features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edual‑tip\/dual‑outlet design\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e that fits factory and most aftermarket exhaust systems and is designed to accept exhaust tips up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4\" in diameter\u003c\/span\u003e\u003c\/strong\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/es-performance.com\/collections\/rear-diffusers\/products\/4147363\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. Choose between polished stainless steel or black‑chrome finishes to match your personal style.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003e3. Premium Gloss Black UV‑Stabilized ABS Construction\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eManufactured from high‑quality \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eUV‑stabilized ABS polymer\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — the same material used in OEM bumpers and body parts\u003c\/span\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/www.amp-z.com\/Rear-Bumper-Spoiler-Diffuser-Valance-Lip-For-Audi-A4-B8.5-Sline-Sedan-2013-2016.html\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. The deep high‑gloss black finish is UV‑protected to prevent fading, yellowing, or bubbling from harsh sunlight. \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNo painting required\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — ready to install out of the box. A \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003epremium pre‑preg dry carbon fiber version\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is also available for those seeking ultimate weight savings and weave aesthetics\u003c\/span\u003e\u003ca href=\"https:\/\/eurobahndynamics.com\/products\/audi-b8-5-s4-a4-kb-style-carbon-fiber-rear-diffuser?pr_prod_strat=e5_desc\u0026amp;pr_rec_id=d2d84dbd8\u0026amp;pr_rec_pid=8405140701425\u0026amp;pr_ref_pid=8405137752305\u0026amp;pr_seq=uniform\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003e4. Direct Fitment for B8.5 S‑Line (2013–2016) — No Drilling Required\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eEngineered for a perfect OEM+ fit onto \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eAudi A4 B8.5 S‑Line and S4 rear bumpers\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e using factory mounting locations\u003c\/span\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/es-performance.com\/collections\/rear-diffusers\/products\/4147363\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. Installs with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eno drilling, cutting, or modification of any kind\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e required. Simply remove your currently installed valance, line up all tabs, and lightly press the diffuser in place until the tabs click into position\u003c\/span\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003e⚠️ Note:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e This diffuser is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNOT\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e compatible with Non‑S‑Line (standard) A4 bumpers — the S‑Line bumper is a direct hand‑down from the S4, requiring a dual‑exhaust diffuser by default\u003c\/span\u003e\u003ca href=\"https:\/\/forums.audizine.com\/threads\/diffuser-rear-valence-options-for-b8-5-a4-s-line.978092\/#post-14965984\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. You must have the factory S‑Line exterior package to install this diffuser.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003e5. CE \u0026amp; TUV MATERIALGUTACHTEN Certified\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003eThis diffuser is \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eCE certified\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, meeting European safety and quality standards for automotive aftermarket parts. It has also received \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eTUV MATERIALGUTACHTEN certification\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, verifying material quality and safety for road use. The product also complies with \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eEPR (France\/Germany)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e environmental regulations for packaging and waste management. The product arrives with a protective film — \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003edo not remove the protective film\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e until you are certain the product fits, as removal will void the return policy. If you decide to paint the diffuser, primer must be used first.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cdiv class=\"ds-scroll-area ds-scroll-area--show-on-focus-within _1210dd7 c03cafe9\"\u003e\n\u003cdiv class=\"ds-scroll-area__gutters\"\u003e\n\u003cdiv class=\"ds-scroll-area__horizontal-gutter\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"ds-scroll-area__vertical-gutter\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width: 100%;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth style=\"width: 31.3248%;\"\u003e\u003cspan\u003eSpecification\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 68.3142%;\"\u003e\u003cspan\u003eDetails\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eVehicle Fitment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\n\u003cspan\u003eAudi A4 B8.5 (13–16) — \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eS‑Line ONLY\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e; Audi S4 B8.5 (13–16) — all trims\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eChassis Code\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eB8.5 (Typ 8K, 8K2, 8K5, 8KH facelift, 2013‑2016)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eBody Styles\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eSedan (Saloon)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eBumper Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\n\u003cstrong\u003e\u003cspan\u003eS‑Line Sport Bumper \/ S4 ONLY\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e — NOT for Non‑S‑Line (standard)\u003c\/span\u003e\u003ca href=\"https:\/\/canautoperformance.com\/products\/b8-5-audi-s4-carbon-fiber-diffuser-v1\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eModel Years\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003e2013, 2014, 2015, 2016\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eNOT Compatible With\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eNon‑S‑Line A4, Pre‑facelift B8 (2008‑2012), A4 Allroad, Avant (Estate), Vehicles with AdBlue system, Vehicles with factory tow hitch, Vehicles with hands‑free trunk (kick‑to‑open)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003ePremium UV‑Stabilized ABS Polymer (in stock) \/ Pre‑Preg Dry Carbon Fiber (made‑to‑order)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eFinish\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eHigh‑Gloss Black (UV‑resistant, ready to install)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eStyle\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eS4 Look \/ S4 OEM+ Style\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eExhaust Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\n\u003cspan\u003eDual‑outlet design (left + right); accepts tips up to \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003e4\" diameter\u003c\/span\u003e\u003c\/strong\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eAerodynamic Benefit\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\n\u003cspan\u003eReduces drag, improves high‑speed stability\u003c\/span\u003e\u003ca href=\"https:\/\/www.amp-z.com\/Rear-Bumper-Spoiler-Diffuser-Valance-Lip-For-Audi-A4-B8.5-Sline-Sedan-2013-2016.html\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/eurobahndynamics.com\/products\/audi-b8-5-s4-a4-kb-style-carbon-fiber-rear-diffuser?pr_prod_strat=e5_desc\u0026amp;pr_rec_id=d2d84dbd8\u0026amp;pr_rec_pid=8405140701425\u0026amp;pr_ref_pid=8405137752305\u0026amp;pr_seq=uniform\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eKit Includes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eRear diffuser, dual tailpipe exhaust tips (left + right)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eCertifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eCE Certified, TUV MATERIALGUTACHTEN Certified, EPR (France\/Germany)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\n\u003cspan\u003eFactory mounting locations + tabs; press‑fit design; \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eno drilling required\u003c\/span\u003e\u003c\/strong\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eProtective Film\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eProduct arrives with protective film — removal voids returns\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eWarranty\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003e1 Year (manufacturing defects)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 31.3248%;\"\u003e\u003cstrong\u003e\u003cspan\u003eCountry of Origin\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 68.3142%;\"\u003e\u003cspan\u003eFactory direct – quality controlled\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cspan\u003eWhat's in the Box\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003e1 × S4‑style rear diffuser \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cspan\u003e2 × Dual tailpipe exhaust tips \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003enstallation \u0026amp; Safety Guide\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eProfessional installation is strongly recommended — do not attempt DIY unless you are a qualified technician.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eInstallation Time:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1–2 hours | \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eDifficulty:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Moderate\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eImportant Safety Notice:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e When working underneath your vehicle, always use approved jack stands. Never work under a car that is only supported by a floor jack.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003eShipping \u0026amp; Returns\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e 20-Year Specialization: 158000+ bumpers installed since 2006.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eShipping:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Worldwide delivery. In-stock US orders ship within 1-3 business days. International orders: 22-25 business days. Free shipping \u0026amp;amp; no sales tax(Continental US only).\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eReturns:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e If the kit does not fit, arrives damaged, or you are unsatisfied, return it within 15 days as long as it remains uninstalled and unpainted – free return shipping for genuine fitment issues. Combined with our 1-year warranty, this risk-free policy gives body shops, resellers, and DIYers complete confidence when ordering For Audi facelift kits. Contact us for wholesale pricing and US stock availability.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eWarranty:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 1-year warranty against manufacturing defects.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\u003cspan\u003eFrequently Asked Questions\u003c\/span\u003e\u003c\/h4\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eQ1: Will this fit my 2013–2016 Audi A4 or S4?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eA:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Yes, if your vehicle is a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eB8.5 facelift (2013–2016) with the S‑Line sport bumper\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e (or an S4). This diffuser will \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNOT\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e fit Non‑S‑Line (standard) A4 bumpers\u003c\/span\u003e\u003ca href=\"https:\/\/canautoperformance.com\/products\/b8-5-audi-s4-carbon-fiber-diffuser-v1\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. The S‑Line bumper is based on the S4 design, requiring a dual‑exhaust diffuser by default\u003c\/span\u003e\u003ca href=\"https:\/\/forums.audizine.com\/threads\/diffuser-rear-valence-options-for-b8-5-a4-s-line.978092\/#post-14965984\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. Contact us with your VIN for confirmation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eQ2: How do I know if my A4 has S‑Line or Non‑S‑Line?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eA:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The S‑Line exterior package includes sportier front\/rear bumpers, side skirts, and S‑Line badging on the front fenders. If your A4 does not have these, you have the standard (Non‑S‑Line) bumper. S‑Line and S4 rear diffusers are physically incompatible with the standard A4 bumper\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eQ3: Does this kit include exhaust tips?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eA:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eYes!\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e The complete kit includes dual tailpipe exhaust tips, self‑tapping screws, and 3M VHB tape — a complete 1‑stop solution for your rear‑end transformation.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eQ4: Does the diffuser require painting?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eA:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNo.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e It comes in a premium high‑gloss black UV‑stabilized finish — ready to install out of the box. UV‑protection prevents fading and yellowing\u003c\/span\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. If you decide to paint it, primer must be used first.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eQ5: Is drilling required for installation?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eA:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNo drilling, cutting, or modification of any kind is required when using factory mounting locations\u003c\/span\u003e\u003c\/strong\u003e\u003ca href=\"https:\/\/www.ecstuning.com\/b-ecs-parts\/audi-b85-s4-a4-s-line-rear-diffuser-gloss-black\/028807ecs01kt\/?trk_contact=D8GNCJCPRQSM0FQ55DCKO3SLIK\u0026amp;trk_link=FPM3HOR3J844J0IP06D77TJRF8\u0026amp;trk_msg=9QALAJASAOGKP9QU3CM6KSDRJC\u0026amp;trk_sid=MMN4C6MB671KNF68UNM4V5E7EK\u0026amp;utm_campaign=Catch_All_Monthly_Recap_11092022_CW_MKT3865\u0026amp;utm_medium=email\u0026amp;utm_source=emailcampaign\u0026amp;utm_term=Audi+B8.5+S4+%2F+A4+S-Line+Rear+Diffuser+-+Gloss+Black+(title)\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. However, self‑tapping screws are recommended in corners and tabs for best fitment.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eQ6: Is professional installation required?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cblockquote\u003e\n\u003cp class=\"ds-markdown-paragraph\"\u003e\u003cstrong\u003e\u003cspan\u003eA:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eYes, strongly recommended.\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Professional installation by someone with aftermarket product experience is highly advised\u003c\/span\u003e\u003ca href=\"https:\/\/canautoperformance.com\/products\/b8-5-audi-s4-carbon-fiber-diffuser-v1\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e. The rear bumper \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emust\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e be removed to install this diffuser properly\u003c\/span\u003e\u003ca href=\"https:\/\/canautoperformance.com\/products\/b8-5-audi-s4-carbon-fiber-diffuser-v1\" rel=\"noreferrer\" target=\"_blank\"\u003e\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/blockquote\u003e\n\u003c\/div\u003e","brand":"APEX Auto","offers":[{"title":"S line S4 Style rear diffuser with tailpipe","offer_id":56760727175471,"sku":null,"price":466.0,"currency_code":"USD","in_stock":true},{"title":"S line A4 honeycomb rear diffuser with tailpipe","offer_id":56760727208239,"sku":null,"price":466.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0981\/3190\/2767\/files\/1_acbd63de-5deb-45db-844e-325fba7aad70.jpg?v=1776245511","url":"https:\/\/www.apexautotuning.com\/products\/2013-2016-for-audi-a4-s4-b85-s-line-diffuser-with-tailpipe","provider":"Apexauto","version":"1.0","type":"link"}