{"product_id":"bmw-3-series-g20-g21-lci-carbon-fibre-performance-rear-diffuser-set-by-tre-2023","title":"BMW 3 Series G20 G21 LCI Carbon Fibre Rear Diffuser Set by FORM (2023+)","description":"\u003cp\u003eThe FORM Industries Performance Rear Diffuser for the BMW 3 Series M Sport LCI has been made to provide an aggressive centre piece on the rear of the vehicle.\u003c\/p\u003e\n\u003cp\u003eIt is constructed from 3 pieces of pre-preg Carbon Fibre.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e This kit is for European cars only.\u003c\/p\u003e\n\u003ch4\u003eWhat's in the box\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e3 x FORM Industries Carbon Fibre (pre-preg, 2x2 Weave) Rear Diffuser Pieces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatible models\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eBMW 3 Series LCI \u003cspan\u003e(2023+, G20 G21)\u003c\/span\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e This kit is for European cars only.\u003c\/p\u003e\n\u003ch4\u003eHow to install\u003c\/h4\u003e\n\u003ch2 data-start=\"293\" data-end=\"362\"\u003e\u003cstrong data-start=\"296\" data-end=\"362\"\u003eBMW G20 M Sport — FORM Industries 3-Piece Rear Diffuser Installation Guide\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"364\" data-end=\"453\"\u003e\u003cstrong data-start=\"364\" data-end=\"379\"\u003eDifficulty:\u003c\/strong\u003e ★★☆☆☆ (Moderate)\u003cbr data-start=\"396\" data-end=\"399\"\u003e\u003cstrong data-start=\"399\" data-end=\"417\"\u003eTime Required:\u003c\/strong\u003e 30–45 minutes\u003cbr data-start=\"431\" data-end=\"434\"\u003e\u003cstrong data-start=\"434\" data-end=\"451\"\u003eTools Needed:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"454\" data-end=\"633\"\u003e\n\u003cli data-start=\"454\" data-end=\"484\"\u003e\n\u003cp data-start=\"456\" data-end=\"484\"\u003ePlastic trim removal tools\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"485\" data-end=\"509\"\u003e\n\u003cp data-start=\"487\" data-end=\"509\"\u003eT20 Torx screwdriver\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"510\" data-end=\"531\"\u003e\n\u003cp data-start=\"512\" data-end=\"531\"\u003e8mm socket wrench\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"532\" data-end=\"568\"\u003e\n\u003cp data-start=\"534\" data-end=\"568\"\u003eMicrofiber towel or fender cover\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"569\" data-end=\"633\"\u003e\n\u003cp data-start=\"571\" data-end=\"633\"\u003eOptional: a friend or second person for alignment assistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"635\" data-end=\"638\"\u003e\n\u003ch3 data-start=\"640\" data-end=\"675\"\u003e\u003cstrong data-start=\"644\" data-end=\"675\"\u003eStep 1: Prepare the Vehicle\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col data-start=\"676\" data-end=\"1068\"\u003e\n\u003cli data-start=\"676\" data-end=\"745\"\u003e\n\u003cp data-start=\"679\" data-end=\"745\"\u003ePark the vehicle on a flat surface and engage the parking brake.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"746\" data-end=\"839\"\u003e\n\u003cp data-start=\"749\" data-end=\"839\"\u003eIf possible, raise the rear of the car slightly using ramps or a lift for easier access.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"840\" data-end=\"928\"\u003e\n\u003cp data-start=\"843\" data-end=\"928\"\u003eUse a microfiber towel or fender cover to protect the paint around the rear bumper.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"929\" data-end=\"1068\"\u003e\n\u003cp data-start=\"932\" data-end=\"1068\"\u003eEnsure the diffuser and surrounding area are clean and free of dirt or debris—this prevents scratches during removal and installation.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr data-start=\"1070\" data-end=\"1073\"\u003e\n\u003ch3 data-start=\"1075\" data-end=\"1114\"\u003e\u003cstrong data-start=\"1079\" data-end=\"1114\"\u003eStep 2: Remove the OEM Diffuser\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col data-start=\"1115\" data-end=\"1617\"\u003e\n\u003cli data-start=\"1115\" data-end=\"1261\"\u003e\n\u003cp data-start=\"1118\" data-end=\"1261\"\u003eBegin by removing the screws along the underside of the OEM diffuser using an \u003cstrong data-start=\"1196\" data-end=\"1210\"\u003e8mm socket\u003c\/strong\u003e or \u003cstrong data-start=\"1214\" data-end=\"1233\"\u003eT20 Torx driver\u003c\/strong\u003e, depending on your model.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1262\" data-end=\"1376\"\u003e\n\u003cp data-start=\"1265\" data-end=\"1376\"\u003eOnce the screws are out, use a \u003cstrong data-start=\"1296\" data-end=\"1325\"\u003eplastic trim removal tool\u003c\/strong\u003e to gently pry the diffuser away from the bumper.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1377\" data-end=\"1528\"\u003e\n\u003cp data-start=\"1380\" data-end=\"1528\"\u003eWork your way from one side to the other, carefully releasing the diffuser clips. \u003cstrong data-start=\"1462\" data-end=\"1489\"\u003eAvoid using metal tools\u003c\/strong\u003e, as they can damage the bumper tabs.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1529\" data-end=\"1617\"\u003e\n\u003cp data-start=\"1532\" data-end=\"1617\"\u003eOnce all clips are disengaged, pull the OEM diffuser straight out and set it aside.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr data-start=\"1619\" data-end=\"1622\"\u003e\n\u003ch3 data-start=\"1624\" data-end=\"1672\"\u003e\u003cstrong data-start=\"1628\" data-end=\"1672\"\u003eStep 3: Test-Fit the FORM Industries Diffuser Pieces\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col data-start=\"1673\" data-end=\"2035\"\u003e\n\u003cli data-start=\"1673\" data-end=\"1824\"\u003e\n\u003cp data-start=\"1676\" data-end=\"1824\"\u003eBefore full installation, \u003cstrong data-start=\"1702\" data-end=\"1744\"\u003etest-fit all three FORM Industries diffuser pieces\u003c\/strong\u003e (left, right, and center) to familiarize yourself with alignment and fitment.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1825\" data-end=\"1927\"\u003e\n\u003cp data-start=\"1828\" data-end=\"1927\"\u003eCheck that all clip points and screw holes line up correctly with the factory mounting locations.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1928\" data-end=\"2035\"\u003e\n\u003cp data-start=\"1931\" data-end=\"2035\"\u003eIf necessary, make small adjustments to ensure a flush, even fit before securing anything permanently.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr data-start=\"2037\" data-end=\"2040\"\u003e\n\u003ch3 data-start=\"2042\" data-end=\"2098\"\u003e\u003cstrong data-start=\"2046\" data-end=\"2098\"\u003eStep 4: Install the FORM Industries Diffuser — Side Sections\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col data-start=\"2099\" data-end=\"2489\"\u003e\n\u003cli data-start=\"2099\" data-end=\"2258\"\u003e\n\u003cp data-start=\"2102\" data-end=\"2258\"\u003eBegin with the \u003cstrong data-start=\"2117\" data-end=\"2145\"\u003eleft-side diffuser piece\u003c\/strong\u003e. Align the mounting tabs with the OEM clip points, then press firmly until all clips snap securely into place.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2259\" data-end=\"2400\"\u003e\n\u003cp data-start=\"2262\" data-end=\"2400\"\u003eRepeat the process on the \u003cstrong data-start=\"2288\" data-end=\"2317\"\u003eright-side diffuser piece\u003c\/strong\u003e, confirming that both ends are evenly seated and flush with the bumper contours.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2401\" data-end=\"2489\"\u003e\n\u003cp data-start=\"2404\" data-end=\"2489\"\u003eReinstall any factory screws along the lower edge of each side piece if applicable.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr data-start=\"2491\" data-end=\"2494\"\u003e\n\u003ch3 data-start=\"2496\" data-end=\"2538\"\u003e\u003cstrong data-start=\"2500\" data-end=\"2538\"\u003eStep 5: Install the Center Section\u003c\/strong\u003e\u003c\/h3\u003e\n\u003col data-start=\"2539\" data-end=\"3029\"\u003e\n\u003cli data-start=\"2539\" data-end=\"2702\"\u003e\n\u003cp data-start=\"2542\" data-end=\"2702\"\u003eAlign the \u003cstrong data-start=\"2552\" data-end=\"2579\"\u003ecenter diffuser section\u003c\/strong\u003e between the two installed side pieces. Ensure that the edges overlap cleanly and that all clip points are fully engaged.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2703\" data-end=\"2803\"\u003e\n\u003cp data-start=\"2706\" data-end=\"2803\"\u003ePress upward and inward firmly until the center piece locks into place with an audible “click.”\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2804\" data-end=\"2905\"\u003e\n\u003cp data-start=\"2807\" data-end=\"2905\"\u003eReinstall the remaining screws along the underside of the diffuser to secure all three sections.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2906\" data-end=\"3029\"\u003e\n\u003cp data-start=\"2909\" data-end=\"3029\"\u003ePerform a final visual check—ensure all edges are even, clips are seated, and the diffuser sits flush with the bumper.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003chr data-start=\"3031\" data-end=\"3034\"\u003e\n\u003ch3 data-start=\"3036\" data-end=\"3055\"\u003e\u003cstrong data-start=\"3040\" data-end=\"3055\"\u003eFinal Notes\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"3056\" data-end=\"3383\"\u003e\n\u003cli data-start=\"3056\" data-end=\"3145\"\u003e\n\u003cp data-start=\"3058\" data-end=\"3145\"\u003eRecheck all clip points and screws after a short drive to ensure nothing has shifted.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3146\" data-end=\"3267\"\u003e\n\u003cp data-start=\"3148\" data-end=\"3267\"\u003eFor an OEM-like fitment, patience and even pressure during installation are key—avoid forcing any section into place.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3268\" data-end=\"3383\"\u003e\n\u003cp data-start=\"3270\" data-end=\"3383\"\u003eIf you plan to apply ceramic coating or PPF to the diffuser, do so \u003cstrong data-start=\"3337\" data-end=\"3360\"\u003ebefore installation\u003c\/strong\u003e for the best finish.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"FORM Industries","offers":[{"title":"Default Title","offer_id":45259604525285,"sku":"FO-BG20LRDCFE","price":883.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1279\/7961\/files\/bmw-3-series-g20-g21-lci-carbon-fibre-performance-rear-diffuser-set-by-tre-2023-tre-254524.jpg?v=1726654825","url":"https:\/\/autoid.co\/en-fr\/products\/bmw-3-series-g20-g21-lci-carbon-fibre-performance-rear-diffuser-set-by-tre-2023","provider":"AUTOID®","version":"1.0","type":"link"}