{"product_id":"bmw-b58-gen1-performance-cams-257-a","title":"Kelford BMW B58 Gen1 Performance Cams 257-A","description":"\u003cp\u003eBMW Gen1 B58 Stage 1 Performance Camshaft - 270°\/268° cams to suit BMW's Gen 1 B58 engine with bolt on intake, exhaust and turbo upgrades. For an engine producing around 550-750hp running a 58-68mm turbo. Still maintains full use of Valvetronic and Dual VANOS for good throttle response and wide power band. Must have valve spring upgrade, Kelford Cams recommend valve spring KVS57-BT.  \u003cbr\u003e\nBMW have released these engines in several revisions. To simplify things the Kelford team have named these revisions Gen 1, Gen 1.5 \u0026amp; Gen 2\u003cbr\u003e\nPlease use attached \"Generation Picker\" document to ensure correct camshaft selection. \u003cbr\u003e\nIf you are unsure of the generation of your engine please contact the sales team \u0026amp; they will make sure you get the correct camshafts\u003c\/p\u003e","brand":"Kelford Cams","offers":[{"title":"Default Title","offer_id":45005000704198,"sku":"257-A","price":1259.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0081\/0804\/8420\/files\/c47969fa-7da0-4b8d-bacb-b5109c1bccb8.jpg?v=1758580323","url":"https:\/\/www.graveyardperformance.com\/products\/bmw-b58-gen1-performance-cams-257-a","provider":"Graveyard Performance","version":"1.0","type":"link"}