BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET DIFFUSER
$739
Middle outlet rear diffuser for the new BMW M3/M4 G80/G81/G82/G83 made from high-quality ultra lightweight pre-preg carbon fibre.
Estimated Delivery: Aug 13 – Aug 17
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Compatible Models
- BMW M3 G80 – 2021+
- BMW M3 G81 – 2021+
- BMW M4 G82 – 2021+
- BMW M4 G83 – 2021+
Middle outlet rear diffuser for the new BMW M3/M4 G80/G81/G82/G83 made from high-quality ultra lightweight pre-preg carbon fibre.
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.



















































Liam Watson –
Bought this diffuser for my BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET 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.
Will Stevens –
Proper OEM-quality diffuser for the BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET. No drilling, no modification, bolted straight on. Looks incredible and completely transforms the car. CT Carbon really know their stuff.
Luke Edwards –
Really pleased with the diffuser. Carbon quality is great on my BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET, 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.
Marcus Bell –
Exactly what I needed for my BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET build. The diffuser is flawless — perfect carbon weave, no bubbles, no orange peel in the lacquer. You can tell it has been made properly. 10/10.
Logan Harrison –
Best diffuser I’ve found for the BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET. I’ve bought from a few different suppliers and this is the best quality by a long way. The carbon weave is consistent and the lacquer finish is thick. Highly recommend.
Daniel Foster –
Very impressed with the quality of this diffuser. Fits my BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET 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 –
Reasonable quality for the money. The diffuser for my BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET does the job and looks decent. Not quite the perfection I was hoping for — one fixing tab snapped during fitting — but passable. Customer service was helpful when I queried.
Andrew Palmer –
Ordered the diffuser for my BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET and it arrived well packaged in about a week. Fitment was spot on with the original mounting points and the finish is stunning. 5 stars, no question.
Mike Anderson –
Top quality diffuser. Bought it for my BMW M3/M4 G80/G81/G82/G83 MIDDLE OUTLET and couldn’t be happier. The carbon matches the quality you’d see on professional race builds. Shipping was fast and packaging was solid.