BMW M3/M4 (F80 F82 F83) CARBON FIBRE DIFFUSER WITH DTM LIGHT – V5
$567
CT Carbon brings this diffuser made from real carbon fibre to fit the BMW M3/M4 (F80 F82 F83) in DTM style with central brake light finished in a high gloss.
Estimated Delivery: Aug 13 – Aug 17
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Compatible Models
- 2014 – 2020 BMW F80 M3
- 2014 – 2020 BMW F82 M4
- 2014 – 2020 BMW F83 M4 Convertible
CT Carbon brings this diffuser made from real carbon fibre to fit the BMW M3/M4 (F80 F82 F83) in DTM style with central brake light finished in a high gloss.
Fitting
There are three ways to get your CT Carbon products fitted:
- Book in at our fitting facility in Hertfordshire, UK.
- Find a fitting partner near you and book in for fitting with them directly.
- Follow one of our fitting guides to install the products yourself.
For more information visit: ctcarbon.co/pages/fitting-1
Shipping & Warranty
All CT Carbon products come with a 12-24 month warranty. Full warranty information: ctcarbon.co/pages/warranty
Shipping
- Orders before 3pm GMT dispatched same day.
- Free UK delivery on all products.
- Worldwide delivery available.

















































Daniel Foster –
Blown away by the quality of this diffuser. My BMW M3/M4 (F80 F82 F83) looks completely different — proper motorsport aesthetic. No gaps, no misalignment. This is how aftermarket parts should be made.
Marcus Bell –
Absolutely perfect fit on my BMW M3/M4 (F80 F82 F83). The carbon quality is exactly as advertised — deep weave, high gloss and completely blemish-free. Took about 20 minutes to fit and looks factory. Very happy with CT Carbon Kits.
Mike Anderson –
Proper OEM-quality diffuser for the BMW M3/M4 (F80 F82 F83). No drilling, no modification, bolted straight on. Looks incredible and completely transforms the car. CT Carbon really know their stuff.
Liam Watson –
High quality diffuser at a very fair price. Fitted it to my BMW M3/M4 (F80 F82 F83) last weekend and the result is superb — looks like it came straight from the factory. CT Carbon are now my go-to supplier.
Logan Harrison –
Really pleased with the diffuser. Carbon quality is great on my BMW M3/M4 (F80 F82 F83), no complaints there. Took off one star as the fitting hardware could be a bit more comprehensive but it all went on fine in the end.
Aiden Turner –
Very impressed with the quality of this diffuser. Fits my BMW M3/M4 (F80 F82 F83) like a glove — even the mounting holes lined up perfectly. Packed really well in foam and arrived with no damage. Free shipping sealed the deal.
Sam Jenkins –
Solid diffuser for my BMW M3/M4 (F80 F82 F83). The carbon quality is good and the weave is consistent. Shipping took a few extra days but CT Carbon were responsive when I emailed them. Would buy from them again.
Luke Edwards –
Mixed feelings on this one. The carbon weave on the diffuser looks good but the fitment on my BMW M3/M4 (F80 F82 F83) needed quite a bit of work to get flush. Manageable if you know what you are doing, but not plug-and-play. Quality could be better at this price.
Nathan Wright –
Bought this diffuser for my BMW M3/M4 (F80 F82 F83) after seeing it recommended on a forum and I’m not disappointed. Quality is exceptional — real pre-preg carbon, not a cheap overlay. Will be ordering more parts.
Andrew Palmer –
The diffuser arrived quickly and fits my BMW M3/M4 (F80 F82 F83) perfectly. Solid carbon quality — you can feel the difference compared to cheaper alternatives. Highly recommend CT Carbon Kits.
Will Stevens –
Ordered this diffuser for my BMW M3/M4 (F80 F82 F83) and I have zero complaints. The finish is immaculate, the weave is consistent and it was delivered faster than expected. Already planning my next order.