{"product_id":"xc3-engineering-rear-bumper-speed-holes-bmw-m2-m3-m4-e46-e9x-f8x-g8x","title":"XC3 Engineering Rear Bumper Speed Holes - BMW M2 M3 M4 E46 E9X F8X G8X","description":"\u003cp\u003eReduce aerodynamic drag and eliminate high-speed rear bumper parachuting with the XC3 Engineering Rear Bumper Speed Holes. At high track speeds, the massive cavity inside the rear bumper of BMW M cars acts like a parachute, trapping turbulent underbody airflow that escapes from the rear diffuser zone. This creates substantial vehicle drag and compromises high-speed stability.\u003c\/p\u003e\n\u003cp\u003ePrecision-engineered in the UK, these premium bumper vents allow high-pressure air trapped behind the rear fascia to exhaust cleanly, smoothing the vehicle's aerodynamic wake. Featuring a lightweight Carbon Fibre Reinforced structure with high UV resistance, they deliver true motorsport functionality while giving your E46, E9X, F8X, or G8X chassis a highly aggressive, time-attack visual profile.\u003c\/p\u003e\n\u003cp\u003ePart Number: XC3-UV-140 (140mm) \/ XC3-UV-120 (120mm)\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003eKey Features\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e– Lightweight, high-strength Carbon Fibre Reinforced structure\u003cbr\u003e\n– Advanced compound matrix delivers excellent longevity and high UV resistance against fading\u003cbr\u003e\n– Includes a CNC laser-cut aluminised steel layout template for absolute cutting accuracy\u003cbr\u003e\n– Available in two distinct structural sizes: 120mm or 140mm configurations\u003cbr\u003e\n– Premium design engineered, tested, and manufactured in the United Kingdom\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003eBenefits\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e– Drastically reduces the rear bumper \"parachute effect\" by exhausting trapped, high-pressure airflow\u003cbr\u003e\n– Decreases aerodynamic drag at high track speeds for improved straight-line velocity\u003cbr\u003e\n– Adds a striking, functional, race-inspired aesthetic to the rear profile of your BMW build\u003cbr\u003e\n– Covered by the comprehensive XC3 Engineering Lifetime Warranty for long-term reliability\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003eDimensions\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e– Vent Sizing Variations: 120mm × 60mm OR 140mm × 60mm\u003cbr\u003e\n– Individual Vent Height: 65mm\u003cbr\u003e\n– Vent Spacing: 75mm\u003cbr\u003e\n– Overall Vent Assembly Width: 525mm (for 120mm spec) \/ 585mm (for 140mm spec)\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003eFAQ\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is this kit specific to one BMW model or is it a universal product?\u003c\/strong\u003e\u003cbr\u003e\nA: While designed and tested thoroughly across multiple generations of M cars (E46, E9X, F8X, G8X), this design is highly adaptable and can be universally installed on a wide range of track-day, sprint, or time-attack vehicles with flat rear bumper panels.\u003cbr\u003e\u003cbr\u003e\n\u003cstrong\u003eQ: How are these speed hole vents secured into the rear bumper fascia?\u003c\/strong\u003e\u003cbr\u003e\nA: Professional installation is highly advised. After utilizing the included laser-cut steel template to mark and cut your bumper framework, the vents must be permanently secured from the inner side using an automotive-grade structural adhesive suitable for exterior bodywork applications.\u003cbr\u003e\u003cbr\u003e\n\u003cstrong\u003eQ: Will the carbon fiber material yellow over time from exhaust heat?\u003c\/strong\u003e\u003cbr\u003e\nA: No. XC3 components utilize a high-spec resin composite formulation featuring advanced UV inhibitors and high thermal resistance, ensuring the raw finish stays deep and clear even when exposed to high environmental stress and track conditions.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cspan role=\"text\"\u003eFitment\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e– BMW M3 E46 (2000-2006)\u003cbr\u003e\n– BMW M3 E90 \/ E92 \/ E93 (2007-2013)\u003cbr\u003e\n– BMW F8X M2 \/ M3 \/ M4 (2014-2021)\u003cbr\u003e\n– BMW G8X M2 \/ M3 \/ M4 (2021+)\u003cbr\u003e\n– Universal applications across various makes and models\u003c\/p\u003e\n\u003cp\u003eIf you are unsure on fitment, please message us with your registration or VIN and we will confirm compatibility before purchase.\u003c\/p\u003e","brand":"XC3 Egineering","offers":[{"title":"120mm","offer_id":54871364796745,"sku":null,"price":79.0,"currency_code":"GBP","in_stock":true},{"title":"140mm","offer_id":54871364829513,"sku":null,"price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0979\/2851\/1817\/files\/140_and_120_Speed_holes_XC3.png?v=1784288165","url":"https:\/\/www.trackwarriormods.co.uk\/products\/xc3-engineering-rear-bumper-speed-holes-bmw-m2-m3-m4-e46-e9x-f8x-g8x","provider":"Track Warrior Mods","version":"1.0","type":"link"}