Description
Enhance the rear-end aesthetics of your Audi with the Canadian Auto Performance Dry Carbon Fiber Diffuser, meticulously crafted for the B9 Audi A4 S-Line and S4 models. Manufactured from high-quality pre-preg (dry) carbon fiber, this diffuser offers an ultra-premium finish, exceptional strength, and significant weight reduction compared to traditional fiberglass or wet carbon alternatives. It’s the perfect upgrade for drivers looking to add a bold, sporty look while maintaining the refined elegance expected from an Audi.
Designed to integrate seamlessly with the rear bumper, this aggressive rear diffuser features quad exhaust tip openings—ideal for performance-oriented setups and dual-outlet exhaust systems. The sharply contoured fins add aerodynamic character and an RS-style flair that enhances both appearance and airflow management.
Whether you’re upgrading your Audi A4 S-Line or S4, this carbon fiber diffuser delivers a true performance look and complements other CAP carbon accessories such as the M4-style spoiler and B9 honeycomb grille.
Installation Notes: This diffuser requires removal of the rear bumper for proper installation. Self-tapping screws are necessary for secure fitment. Professional installation is highly recommended, especially by individuals experienced with aftermarket body components.
Key Features:
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Premium Dry Carbon Fiber Construction – Made using pre-preg carbon fiber for high strength, lightweight durability, and a flawless weave finish.
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Aggressive Rear Styling – Sharpened diffuser fins and quad exhaust openings provide a motorsport-inspired rear-end look.
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Quad Exhaust Cutouts – Designed for upgraded or factory quad-tip exhaust systems.
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Perfect Fitment – Engineered specifically for B9 Audi A4 S-Line and S4 rear bumpers.
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Pairs with Other CAP Parts – Matches perfectly with the CAP M4-style carbon spoiler and B9 honeycomb grille.
Fitment:
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Audi A4 S-Line (B9, 2017–2019)
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Audi S4 (B9, 2017–2019)
Note: Does not fit Non S-Line A4 models.
Upgrade your Audi’s rear end with the Canadian Auto Performance Dry Carbon Fiber Diffuser and experience a blend of high-end design, lightweight performance, and aggressive visual impact.
