{"product_id":"goldenwrench-blackline-performance-bmw-m-car-series-coolant-expansion-tank-cap-cover","title":"Goldenwrench Blackline Performance BMW M Car Series Coolant Expansion Tank Cap Cover","description":"\u003cp\u003eThe \u003ca href=\"https:\/\/ind-distribution.com\/collections\/goldenwrench-supply\" target=\"_blank\"\u003eGoldenwrench\u003c\/a\u003e Blackline Performance BMW M Car Series Coolant Expansion Tank Cap Cover is a precision-machined billet aluminum upgrade for the factory coolant expansion tank cap on compatible BMW M vehicles. Building on the success of the Blackline Billet Oil Cap Cover, this piece applies the same CNC-machined T6 aluminum construction and anodized finish standards to the coolant expansion tank — delivering an OEM+ result with tangible material and aesthetic improvement over the factory plastic component.\u003c\/p\u003e\n\n\u003cp\u003eEach cap cover is CNC-machined from high-grade T6 aluminum and available in multiple anodized finishes, including the race-inspired Edition Red. All logos and design details are created using an advanced 3D milling process, machined directly into the cap surface for a permanent, high-definition finish. The Blackline Performance design language carries over from the oil cap cover for a cohesive engine bay appearance. Compatible with N55, S55, and S65 engine-equipped BMW M models that use the large coolant expansion tank configuration.\u003c\/p\u003e\n\n\u003cp\u003eThis is a cap cover, not a full replacement. It installs directly over the factory coolant cap in minutes with no modification required. Each kit includes the billet coolant expansion tank cap cover and an installation guide.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eProduct Details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrecision CNC-machined billet T6 aluminum construction\u003c\/li\u003e\n\u003cli\u003eAvailable anodized finishes: Edition Red, Anthracite Grey, Motorsport Blue\u003c\/li\u003e\n\u003cli\u003e3D-milled logos machined into cap surface for a permanent, premium finish\u003c\/li\u003e\n\u003cli\u003eDesigned for BMW M models with N55, S55, and S65 engines\u003c\/li\u003e\n\u003cli\u003eInstalls over factory coolant cap — no modification required\u003c\/li\u003e\n\u003cli\u003eIncludes billet coolant expansion tank cap cover and installation guide\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Goldenwrench","offers":[{"title":"Anthracite Grey","offer_id":53834393256100,"sku":"FXXCET","price":92.95,"currency_code":"CAD","in_stock":true},{"title":"Edition Red","offer_id":53834393288868,"sku":"FXXCET-R","price":92.95,"currency_code":"CAD","in_stock":true},{"title":"Motorsport Blue","offer_id":53834393321636,"sku":"FXXCET-B","price":92.95,"currency_code":"CAD","in_stock":true},{"title":"IND Painted - Color Matched","offer_id":53834393354404,"sku":"FXXCET-P","price":228.8,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0013\/9929\/1964\/files\/54356946144_2123ffe94a_b.jpg?v=1790370598","url":"https:\/\/www.amtuning.ca\/products\/goldenwrench-blackline-performance-bmw-m-car-series-coolant-expansion-tank-cap-cover","provider":"AM Tuning Canada","version":"1.0","type":"link"}