CMST Tuning Carbon Fiber Rear Diffuser for Audi A5 / S5 B9 2017-2019
Give your Audi A5 B9 2017-2019 a cleaner, more purposeful rear exit with this rear diffuser. The carbon fiber finish delivers a high-impact appearance upgrade grounded in the facts listed for this product.
Built with a durable Carbon fiber construction, finished in Carbon fiber.
Key features
-
cleaner rear exit aero design — cleaner rear exit aero
-
Carbon fiber — finish that pairs cleanly with factory paint and trim
-
Carbon fiber — lightweight motorsport material with a clear carbon weave look
Fitment
Designed for the Audi A5 B9 2017-2019. Confirm your chassis code (B9), year range (2017-2019), facelift / bumper style before ordering; send a photo of the install area if you want a fitment check.
- Fits: Audi A5 B9 2017-2019 with the compatible factory mounting
- Confirm this is the correct rear diffuser for your bumper / chassis generation
- Variants: Carbon Fiber, Forged Carbon, Matte Carbon
Specifications
| Part |
Rear Diffuser |
| Vehicle |
Audi A5 B9 2017-2019 |
| Material |
Carbon fiber |
| Finish |
Carbon fiber |
| Install |
Confirm install method for your chassis |
Why upgrade
The rear valance is a large flat area on many cars. A diffuser adds structure and exit-aero character to the Audi A5 B9 2017-2019 without requiring a full bumper replacement when fitment matches.
FAQ
Will this fit my Audi?
It is made for the Audi A5 B9 2017-2019 (chassis cues: B9). Other generations use different geometry and will not fit — always match chassis code, year, and facelift / bumper style.
Is it real carbon fiber?
This version is listed as Carbon fiber. Material called out in the listing: Carbon fiber.
Does it replace the whole bumper?
Usually no — this is the listed rear diffuser only, not an entire vehicle reskin. It is intended to work with the OEM mounting concept when fitment matches.
Do I need a body shop to install it?
Many owners have a body shop or detailing shop handle the install so panel gaps and fasteners are set correctly. Experienced DIY installers can also complete straightforward direct-fit pieces with care and the right tools.
How can I confirm fitment before I buy?
Message CarGym with your model year, chassis code, B9, and a clear photo of the install area — we will confirm compatibility before you order.
Shop this CMST Tuning Carbon Fiber Rear Diffuser for Audi A5 / S5 B9 2017-2019 at CarGym with worldwide shipping and payment in all major currencies.
