2017-2019 B9 Audi A4/S4 - CAP Dry Carbon Fiber Diffuser

THIS IS A PRE-ORDER ITEM. Pre-order sale is now live.
The ETA of the shipping of this product is approximately June 25, 2025.

Pre Preg Dry Carbon Fiber Diffuser For 2017-2019 A4/S4

Introducing Canadian Auto Performance's Dry Carbon Fiber Diffuser, crafted from pre-preg (dry) carbon fiber for a premium finish. Made with high quality carbon fiber, this lightweight yet durable diffuser will enhance the sporty look of your Audi.

Quad Exhaust Tip Openings

This diffuser comes with quad exhaust tip opening. Pairs really nicely with our M4 style carbon fiber spoiler. Have you checked our B9 honeycomb grill? Its a must have combo!

Install Instructions Disclaimer:

Professional install of this carbon diffuser by someone who has aftermarket product experience is required. Rear bumper must be removed to install this carbon fiber diffuser properly. Self tapping screws are required for proper fitment.

Please note, this product only fits the B9 A4 S-Line/S4 Model. If you have a B9 A4 Non S-Line, please click the highlighted link.