The kidney grille is the most argued-about part on the G8X, and the CSL-style frame is how most owners settle it. This is the version for cars with the front radar sensor — Active Cruise Control or Traffic Jam Assistant. Not sure? The guide below takes thirty seconds.
A full replacement for the factory kidney grille, built from autoclaved 2x2 pre-preg dry carbon fiber and shaped to the CSL's frame silhouette. It drops into the factory clip positions — the bumper does not come off.
Often bought with the Carbon Fiber Mirror Covers, which carry the same weave down the sides of the car.
This listing is the ACC version. If your car doesn't have the radar sensor, you need the non-ACC grille instead.
Fits the 2021-2027 BMW M3 (G80) Sedan, M4 (G82) Coupe and M4 (G83) Convertible.
Which One Do I Need?
The two versions differ in the sensor opening behind the grille frame, and they are not interchangeable. There are three ways to tell which you have:
- Look behind the grille. An ACC car has a radar module mounted centrally behind the kidney frame, usually visible as a flat rectangular housing. A non-ACC car has open space or a blanking panel.
- Check how your cruise control behaves. If it holds a set distance from the car ahead and slows automatically in traffic, you have ACC.
- Check your original window sticker or build sheet for Active Cruise Control.
Depending on market and model year, BMW also refers to this system as Active Cruise Control, ACC, or Traffic Jam Assistant. If your car has any of those, this is your version.
The grille does not relocate or obstruct the sensor — it replaces the trim around it. Sensor recalibration is not normally required, but if your car has had a front-end alignment or windshield calibration performed recently, mention the grille change to your installer.
Why Autoclave Pre-Preg Dry Carbon Fiber
Pre-preg carbon arrives with the resin already impregnated into the weave at a controlled ratio, so no resin is added by hand during layup — that is what makes it dry carbon. Curing it under heat and pressure in an autoclave consolidates the laminate and drives out trapped air that would otherwise show as flaws in the finished surface. Other processes introduce the resin at the mold, so the ratio is set during layup rather than before it.
A grille frame is the single most-photographed part on this car and sits at eye level on approach. There is nowhere on it for a pinhole or a wandering weave line to hide.
Please note: Matte and Forged Carbon finishes are non-refundable once the order has been placed.
Browse the full BMW G8X M3/M4 collection.
Free standard shipping on all orders delivered within the 48 contiguous United States.
In-stock parts are prepared for shipment within 1–3 business days. If a part is not currently in stock, the lead time shown under the Add to Cart button applies. Once a shipment leaves our facility, most orders arrive within 3–7 business days, and freight shipments within 5–10 business days.
We also ship to Alaska, Hawaii, U.S. territories, APO/FPO/DPO addresses and internationally by quote — contact us before ordering. Full details in our Shipping policy.
Returns require our approval. Contact us within 5 days of receiving your item to request one. Approved returns are subject to a 30% restocking fee plus return shipping, and original shipping is non-refundable.
Items that have been installed, used or modified cannot be returned. Non-standard carbon finishes are non-returnable once the order has been placed.
If we shipped the wrong part or it has a manufacturing defect, there is no fee and we cover return shipping. Damage in transit must be reported within 24 hours of delivery — see our Shipping policy. Carbon components carry a 6-month structural and finish warranty. Full details in our Refund policy.
