{"product_id":"bmw-f90-m5-carbon-fibre-cs-style-rear-diffuser","title":"BMW F90, M5 LCI Carbon Fibre CS Style Rear Diffuser","description":"\u003ch2\u003eBMW F90 M5 LCI Carbon Fibre CS Style Rear Diffuser\u003c\/h2\u003e\n\u003cp\u003eFinish the rear of your facelift BMW F90 M5 with this CS Style Rear Diffuser — a single-piece carbon fibre unit that fills the lower bumper with a wide, shallow strake pattern in the style of BMW's own CS models.\u003c\/p\u003e\n\u003cp\u003eWhere our 3D Style set builds depth with separate corner pieces, the CS design does the opposite: one clean span across the full width, with a broad centre channel and a restrained fin pattern either side of it. It widens the car visually rather than dropping it, which suits the LCI's flatter rear treatment.\u003c\/p\u003e\n\u003cp\u003eThis is the diffuser for an M5 that already looks purposeful and only needs the last panel finishing. On a Competition in particular, it matches the gloss black trim BMW already fits without shouting over it.\u003c\/p\u003e\n\u003cp\u003eMeasuring 81 cm across and roughly 444 g, it is moulded to the exact contour of the LCI bumper and bolts to existing points — no cutting, no drilling.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003ch3\u003eGenuine Carbon Fibre\u003c\/h3\u003e\n\u003cp\u003eReal carbon construction with a deep gloss clear coat, at roughly 444 g for the whole unit.\u003c\/p\u003e\n\u003ch3\u003eCS Style Single-Piece Design\u003c\/h3\u003e\n\u003cp\u003eOne clean span across the full width, with a broad centre channel rather than separate corner pieces.\u003c\/p\u003e\n\u003ch3\u003e81 cm Full-Width Coverage\u003c\/h3\u003e\n\u003cp\u003eSpans the entire lower bumper between the exhaust exits.\u003c\/p\u003e\n\u003ch3\u003eMoulded to the LCI Bumper\u003c\/h3\u003e\n\u003cp\u003eFormed to the facelift contour so panel gaps stay tight and the fixings land on existing points.\u003c\/p\u003e\n\u003ch3\u003eBolt-On Installation\u003c\/h3\u003e\n\u003cp\u003eMounts to the existing points. No cutting or drilling of the bumper.\u003c\/p\u003e\n\u003ch3\u003eThe Restrained Rear\u003c\/h3\u003e\n\u003cp\u003eFor a car that already looks the part. Our 3D Style set is the option for a build meant to be noticed.\u003c\/p\u003e\n\u003ch2\u003eStyling Benefits\u003c\/h2\u003e\n\u003cp\u003e• Clean, full-width rear treatment in the CS idiom\u003cbr\u003e• Widens the car visually rather than simply lowering it\u003cbr\u003e• Genuine carbon weave that matches other carbon parts\u003cbr\u003e• No cutting or permanent modification\u003cbr\u003e• Fully reversible at resale or end of lease\u003c\/p\u003e\n\u003ch2\u003eVehicle Fitment\u003c\/h2\u003e\n\u003cp\u003eBMW F90 M5 LCI (2021–2023)\u003cbr\u003eBMW F90 M5 LCI Competition (2021–2023)\u003c\/p\u003e\n\u003ch2\u003ePlease Note\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eThis diffuser is moulded for the LCI facelift rear bumper.\u003c\/strong\u003e If your car is a 2018–2020 build, send us your VIN and we will confirm the correct part before dispatch — we list a separate 3D Style diffuser that covers the earlier bumper.\u003c\/p\u003e\n\u003cp\u003eProfessional installation is recommended. The diffuser should be offered up and aligned across its full 81 cm width before any fixing is tightened.\u003c\/p\u003e\n\u003cp\u003eCarbon fibre is a natural woven material. Minor variation in weave pattern between pieces is characteristic of the material and not a defect.\u003c\/p\u003e\n\u003cp\u003eMade to order. Please contact us to confirm current lead time before ordering.\u003c\/p\u003e\n\u003ch2\u003eWhy Choose Proven Performance Parts\u003c\/h2\u003e\n\u003cp\u003eWe specialise in high-performance parts for European vehicles — including Volkswagen GTI \u0026amp; R models, Audi S\/RS platforms, and BMW M vehicles. Every product we offer is carefully selected for its quality, fitment, and real-world performance — tested by enthusiasts, for enthusiasts.\u003c\/p\u003e\n","brand":"Proven Performance Parts","offers":[{"title":"BMW F90 M5 LCI (2021-2023)","offer_id":52755609256218,"sku":null,"price":1100.0,"currency_code":"AUD","in_stock":true},{"title":"BMW F90 M5 LCI Competition (2021-2023)","offer_id":52755609583898,"sku":null,"price":1100.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0951\/1177\/4490\/files\/01_298dc27c-7d96-44d2-8299-77092d408d2b.png?v=1787987326","url":"https:\/\/provenperformanceparts.com.au\/products\/bmw-f90-m5-carbon-fibre-cs-style-rear-diffuser","provider":"Proven Performance Parts","version":"1.0","type":"link"}