KS Carbon Rear Diffuser — F8X M3 / M4
$1,160.99
In stock
One-piece — best fitment
Qty
1
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Free shipping — 6-8 business days
- Test-fitted on a real chassis before shipping
- Free shipping — delivered in 6–8 business days
- 2-year structural warranty & fitment guarantee
- Fits the F8X M3 / M4
- Diffusers in carbon with a UV-stable clear coat
- Hardware pack and install guide included
- Free shipping, delivered in 6–8 business days
The KS Carbon Rear Diffuser — F8X M3 / M4 is a diffusers upgrade for the F8X M3 / M4. It is moulded to the factory panel lines and mounts to the standard fixing points, so it fits the F8X M3 / M4 without cutting or filler.
The part is genuine woven carbon fiber with a UV-stable gloss clear coat that resists yellowing and fading.
Every part is test-fitted on a chassis before it ships and includes the listed hardware and install guide. Shipping is free, with delivery in 6–8 business days.
F8X M3 / M4 — KS Carbon Rear Diffuser — F8X M3 / M4.
Complete the look
Frequently bought together
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Answers
Frequently asked
- Dry carbon starts as pre-preg sheet — the resin is already in the fibre in an exact ratio, then cured under pressure in an autoclave. There is no excess resin, so the part is lighter, stiffer and the weave stays perfectly straight.
- Every mould is test-fitted on a real vehicle before it goes into production, and each product page lists exact chassis, trim and pre/post-LCI fitment. If a part does not fit as described, we cover return shipping.
- Free shipping on every order, arriving in 6-8 business days. You will get tracking as soon as it ships.
- Trim, mirror caps and interior parts are straightforward DIY jobs with the included hardware and guide. For front lips, diffusers and spoilers we recommend a professional installer.
- Yes. Every part gets a UV-inhibited clear coat, gloss or satin, so the weave does not yellow or bloom after sun exposure.
- 30 days on uninstalled parts in original packaging, refunded to your original payment method, plus a 2-year warranty against delamination and clear-coat failure.
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KS Carbon Rear Diffuser — F8X M3 / M4
$1,160.99