{"product_id":"2021-2027-bmw-m3-m4-csl-style-carbon-fiber-grille-with-acc-g80-g82-g83","title":"2021-2027 BMW M3\/M4 CSL-Style Carbon Fiber Grille (With ACC) (G80, G82, G83)","description":"\u003cp\u003eThe kidney grille is the most argued-about part on the G8X. The CSL-style frame is how most owners settle it.\u003c\/p\u003e\n\u003cp\u003eA full replacement for the factory kidney grille, built from \u003cstrong\u003eautoclaved 2x2 pre-preg dry carbon fiber\u003c\/strong\u003e and shaped to the CSL's frame silhouette. It drops into the factory clip positions — the bumper does not come off.\u003c\/p\u003e\n\u003cp\u003eOften bought with the \u003ca href=\"\/products\/2021-2027-bmw-m3-m4-carbon-fiber-mirror-covers-g80-g82-g83\"\u003eCarbon Fiber Mirror Covers\u003c\/a\u003e, which carry the same weave down the sides of the car.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThis listing is the ACC version.\u003c\/strong\u003e If your car doesn't have the radar sensor, you need the \u003ca href=\"\/products\/2021-2027-bmw-m3-m4-csl-style-carbon-fiber-grille-without-acc-g80-g82-g83\"\u003enon-ACC grille\u003c\/a\u003e instead.\u003c\/p\u003e\n\u003ch2\u003eWhich One Do I Need?\u003c\/h2\u003e\n\u003cp\u003eThe 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:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLook behind the grille.\u003c\/strong\u003e 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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck how your cruise control behaves.\u003c\/strong\u003e If it holds a set distance from the car ahead and slows automatically in traffic, you have ACC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck your original window sticker or build sheet\u003c\/strong\u003e for Active Cruise Control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDepending on market and model year, BMW also refers to this system as Active Cruise Control, ACC, or Traffic Jam Assistant, and the same front radar feeds Park Distance Control. If your car has any of those, this is your version.\u003c\/p\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003ch2\u003eWhy Autoclave Pre-Preg Dry Carbon Fiber\u003c\/h2\u003e\n\u003cp\u003ePre-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.\u003c\/p\u003e\n\u003cp\u003eA 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.\u003c\/p\u003e\n\u003ch2\u003eAvailable Carbon Finishes\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGloss (Standard)\u003c\/strong\u003e — our standard high-gloss 2x2 twill weave\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatte Carbon\u003c\/strong\u003e — same weave, low-sheen matte finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForged Carbon\u003c\/strong\u003e — marbled, high-strength forged carbon pattern\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease note: Matte and Forged Carbon finishes are non-refundable once production has started.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2\u003eCurrent Lead Time\u003c\/h2\u003e\n\u003cp\u003eCurrent estimated lead time is approximately \u003cstrong\u003e25-35 business days\u003c\/strong\u003e from order to ship.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eACC-equipped models only. The ACC and non-ACC versions are not interchangeable — confirm which you need using the guide above.\u003c\/em\u003e\u003c\/p\u003e","brand":"Feral Auto","offers":[{"title":"Standard Gloss","offer_id":49276919906548,"sku":"FRL-G8XCSLFGACC","price":949.99,"currency_code":"USD","in_stock":true},{"title":"Matte Carbon (+$100)","offer_id":49276919939316,"sku":"FRL-G8XCSLFGACC-MTE","price":1049.99,"currency_code":"USD","in_stock":true},{"title":"Forged Carbon (+$300)","offer_id":49276919972084,"sku":"FRL-G8XCSLFGACC-FRG","price":1249.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/6550\/6036\/files\/FrontGrille2.jpg?v=1789141593","url":"https:\/\/feralauto.com\/products\/2021-2027-bmw-m3-m4-csl-style-carbon-fiber-grille-with-acc-g80-g82-g83","provider":"Feral Auto","version":"1.0","type":"link"}