BMW G20 CMST Style Rear Diffuser

1/6

$399.99

Ships in 2–5 weeks - custom-built to order.
Worth the wait.

Transform your BMW G20's rear end with this CMST-style rear diffuser, engineered to enhance aerodynamics and deliver an aggressive, track-inspired aesthetic. Crafted from high-quality materials, this diffuser reduces rear lift at highway speeds while adding visual impact that turns heads. Perfect for enthusiasts seeking performance upgrades without sacrificing daily drivability. Direct bolt-on installation means no cutting or modifications required. Pair it with other aerodynamic upgrades for a complete, cohesive look that sets your G20 apart from the crowd.

INSTALL SUPPORT INCLUDED

Stuck on install? Text us. We've seen every chassis, every issue.

WE KNOW YOUR PLATFORM

G20, G80, 992, R8, 720 we speak the chassis codes because we build these cars too.

American Owned & Operated

Trusted by BMW & Mclaren Owners Nationwide

NOTE - If you are not sure whether any products are suitable for your car, Please feel free to send your car picture to us to check the equipment.

Frequently asked questions

We test-fit every piece before shipping because fitment issues are BS and waste your time. If something's not right, we handle it.

We will work quickly to ship your order as soon as possible. Once your order has shipped, you will receive an email with further information. Delivery times vary depending on your location.

2-5 Week Shipping Time For Carbon Fiber Parts & Exhaust Systems

Our products are manufactured both locally and globally. We carefully select our manufacturing partners and our material suppliers to ensure our products are the high quality and a fair value.

Shipping is calculated based on your location and the items in your order. You will always know the shipping price before you purchase.

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BMW G20 CMST Style Rear Diffuser

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OEM-LEVEL FITMENT

INSTALL SUPPORT INCLUDED

WE KNOW YOUR PLATFORM

American Owned & Operated

NOTE - If you are not sure whether any products are suitable for your car, Please feel free to send your car picture to us to check the equipment.

Customer Reviews

Frequently asked questions