2013-2016 For Audi A4 S4 B8.5 Non S line diffuser with tailpipe

Product Description

Transform the boring rear profile of your 2013–2016 Audi A4 B8.5 Non S‑Line with this S4 style rear diffuser complete with dual tailpipe exhaust tips. Designed specifically for the standard (Non S‑Line) rear bumper, this complete conversion kit replaces your factory rear valance with the aggressive, sporty look of the S4 — featuring a gloss black UV‑stabilized ABS polymer construction, aggressive honeycomb design, and dual‑outlet exhaust openings that dramatically enhance the visual impact of your rear end.

Finding an aftermarket diffuser for a Non S‑Line B8.5 A4 has historically been a challenge. The majority of aftermarket diffusers are designed for S‑Line or S4 bumpers, and many enthusiasts have struggled to find any option for their standard bumper [8†L5-L7][12†L6-L10]. Other owners have been forced to consider cutting up their original bumper to fit quad tips [9†L29-L31]. This diffuser solves that problem — it is specifically contoured to match the standard (Non S‑Line) bumper, giving you the aggressive S4 dual‑exhaust look without requiring an S‑Line bumper conversion or irreversible modifications to your factory bumper. Aftermarket B8.5 diffusers are designed to work only with Non S‑Line bumpers, and you'll find they are not available for S‑Line bumpers [12†L22-L24].

Critical Fitment Note: This diffuser is exclusively for Audi A4 B8.5 facelift (2013–2016) NON S‑LINE (standard) rear bumpers ONLY. It will NOT fit S‑Line, S4, or pre‑facelift B8 (2008–2012) bumpers. Aftermarket B8.5 diffusers are designed to work only with Non S‑Line bumpers [12†L22-L24]. If you have an S‑Line or S4, please check our other listings. B8 diffusers will not fit on a B8.5, as the B8.5 diffuser has a more squared-off shape than the B8 [9†L25-L27].

Complete 1‑Stop Conversion Kit: Includes rear diffuser + dual exhaust tips + self‑tapping screws + 3M VHB tape + installation manual.

Aerodynamic Benefits: The sculpted honeycomb design helps smooth airflow, reduce turbulence, and enhance rear‑end stability at higher speeds.

Serving both individual enthusiasts (B2C) and businesses (B2B):
✅ US warehouse for fast shipping
✅ CE certified for quality assurance
✅ 1‑year warranty for peace of mind
✅ Factory direct – competitive pricing
✅ Dropshipping & wholesale programs available
✅ Custom OEM/ODM orders welcome

5 Key Features

1. Aggressive S4 Style Design – Specifically for Non S‑Line Bumpers
Give your Non S‑Line A4 B8.5 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 uniquely engineered and designed specifically for the standard (Non S‑Line) rear bumper, making it the only quad‑tip diffuser that exists for Non S‑Line B8.5 A4's [8†L5-L7][12†L10-L12]. Most aftermarket manufacturers do not favor Non S‑Line models for exterior parts, and options are extremely rare [12†L6-L8]. As one forum owner noted, "Very happy with my non S‑line valance... Perfect fit, finish is very high quality!" [12†L13-L16].

2. Complete Kit with Dual Tailpipe Exhaust Tips
All‑in‑one conversion kit includes the rear diffuser and dual exhaust tips — everything you need for a full S4‑style rear transformation. Features a dual‑tip/dual‑outlet design that fits factory and most aftermarket exhaust systems and is designed to accept exhaust tips up to 4" in diameter [14†L21-L22]. Choose between polished stainless steel or black‑chrome finishes to match your personal style.

3. Premium Gloss Black UV‑Stabilized ABS Construction (TÜV Certified)
Manufactured from high‑quality UV‑stabilized ABS polymer — the same material used in OEM bumpers and body parts [14†L18-L20]. The deep high‑gloss black finish is UV‑protected to prevent fading, yellowing, or bubbling from harsh sunlight. No painting required — ready to install out of the box. ABS material was created specifically for use in the automotive industry and is used in production of factory bumpers and other car body parts [7†L9-L12]. The product is CE certified, has received TUV MATERIALGUTACHTEN certification verifying material quality and safety for road use [7†L11-L13], and also complies with EPR (France/Germany) environmental regulations for packaging and waste management. This is the same high‑quality ABS plastic trusted by leading aftermarket brands for TUV‑certified products [7†L9-L13]. A premium pre‑preg dry carbon fiber version is also available for those seeking ultimate weight savings and weave aesthetics.

4. Direct Fitment for B8.5 Non S‑Line (2013–2016) — No Drilling Required
Engineered for a perfect OEM+ fit onto Audi A4 B8.5 Non S‑Line (standard) rear bumpers using factory mounting locations. Installs with no drilling, cutting, or modification of any kind required. Simply remove your currently installed valance, line up all tabs, and lightly press the diffuser in place until the tabs click into position [14†L23-L26]. Make sure all tabs are lined up and lightly press the diffuser in place until the tabs click into position.
⚠️ Note: This diffuser is NOT compatible with S‑Line, S4, or pre‑facelift B8 bumpers. B8 diffusers will not fit on a B8.5, as the B8.5 diffuser has a more squared-off shape than the B8 [9†L25-L27].

5. CE & TUV MATERIALGUTACHTEN Certified + EPR Compliant
This diffuser is CE certified, meeting European safety and quality standards for automotive aftermarket parts. It has also received TUV MATERIALGUTACHTEN certification, with ABS material specifically recognized for increased strength and flexibility [7†L11-L13]. The product also complies with EPR (France/Germany) environmental regulations for packaging and waste management. The product arrives with a protective film — do not remove the protective film 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.

Specifications