{"product_id":"spring-kit-spec-r-bmw-m4-f82-15-20","title":"Spring Kit Spec-R BMW M4 F82 15-20","description":"\u003cp\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThe Swift Springs Spec-R lowering spring kit (4X908R) is built for the 2015-2020 BMW M4 (F82 chassis). Swift rates the front springs at 5.0 kgf\/mm and the rear springs at 13.0 kgf\/mm, lowering the car 1.1 in at the front and 0.9 in at the rear. Spec-R springs are tuned around the upper limits of the factory shock valving, so the kit is designed to work with the stock dampers. The kit contains front and rear steel springs with a black powder coat finish.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Specifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBrand: Swift Springs\u003c\/li\u003e\n\u003cli\u003eProduct: Spec-R Lowering Spring Kit\u003c\/li\u003e\n\u003cli\u003eManufacturer Part Number: 4X908R\u003c\/li\u003e\n\u003cli\u003eSKU: BGBF_4X908R\u003c\/li\u003e\n\u003cli\u003eVehicle: 2015-2020 BMW M4 (F82 chassis)\u003c\/li\u003e\n\u003cli\u003eFront spring rate: 5.0 kgf\/mm (280 lb\/in)\u003c\/li\u003e\n\u003cli\u003eRear spring rate: 13.0 kgf\/mm (728 lb\/in)\u003c\/li\u003e\n\u003cli\u003eDrop: 1.1 in front, 0.9 in rear\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel\u003c\/li\u003e\n\u003cli\u003eFinish: Black powder coat\u003c\/li\u003e\n\u003cli\u003eContents: Front and rear springs (kit)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eUsage \u0026amp; Buying Guidance\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eFits the F82 M4 coupe. A wheel alignment is recommended after installation.\u003c\/p\u003e","brand":"SWIFT SPRINGS","offers":[{"title":"Default Title","offer_id":67516071837986,"sku":"BGBF_4X908R","price":397.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0959\/2684\/5730\/files\/SWI4X908R.jpg?v=1791867573","url":"https:\/\/turbochargedracing.com\/products\/spring-kit-spec-r-bmw-m4-f82-15-20","provider":"Turbochargedracing","version":"1.0","type":"link"}