{"product_id":"bilstein-38-129230-bmw-e46-b3-oe-replacement-rear-coil-spring","title":"E46 BMW Rear Coil Spring Bilstein 38-129230 B3 - Fast Road, Track Day, Daily Driver","description":"\u003cp\u003eBilstein 38-129230 B3 rear coil springs for the E46 chassis. Not OE replacement. Not soft. Not vague. Just a precise, linear-rate spring designed to work with B12, B14 and B16 coilover kits - or as a fast-road upgrade on stock dampers where you want better control without drastic ride height change.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChassis fit\u003c\/strong\u003e: E46 3 Series (all body styles - Saloon, Coupe, Convertible, Touring) 1998-2007\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEngine agnostic\u003c\/strong\u003e: Works with N42, N46, N52, M54, M56 - no engine code dependency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStage 1 \/ fast road spec\u003c\/strong\u003e: Slightly stiffer than stock, retains near-OEM ride height and comfort threshold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrack day ready\u003c\/strong\u003e: Hot-set, chrome vanadium steel - zero sag, consistent progression under repeated load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlso searched as\u003c\/strong\u003e: E46 rear spring, Bilstein B3 E46, E46 coil spring decat setup, E46 track spring, E46 daily driver suspension, E46 show car spring (if paired with clean wheels and lowered stance)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNo fitting advice. No compatibility checks. No quotes. Just the part: Bilstein 38-129230, built for race car intent - because race car.\u003c\/p\u003e","brand":"Bilstein","offers":[{"title":"Default Title","offer_id":54381940015447,"sku":"BILSTEIN-38-129230","price":61.15,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1038\/4575\/7271\/files\/14a_31t0E03UeNOnWWEmvwcSbtyNIJ9yQ_926ce186-7b63-47ce-ae67-39ff9051a2de.jpg?v=1787137438","url":"https:\/\/cuzracecars.com\/products\/bilstein-38-129230-bmw-e46-b3-oe-replacement-rear-coil-spring","provider":"Cuz Race Cars","version":"1.0","type":"link"}