{"product_id":"bc-racing-zx-series-coilovers-2012-2018-bmw-3-series-f30-true-rear-coilover-3-bolt-upper-mounts","title":"BC Racing ZX Series Coilovers for 2012-2018 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)","description":"\u003cp\u003eBC Racing ZX Series Coilovers for the 2012-2018 BMW 3-Series F30 True Rear Coilover bring the same three-axis adjustability as the race-spec ZR Series with valving tuned for drivers who split time between street and track. Every kit is extensively tested on the 3-Series F30 True Rear Coilover chassis and refined until it balances ride quality with performance — the reason 3-Series F30 True Rear Coilover coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.\u003c\/p\u003e \u003cp\u003eZX Series kits share the three-axis damper architecture of the race-spec ZR Series, tuned out of the box for drivers who want race-grade adjustability without the ride harshness on the commute home. Where BC Racing separates itself is tuning philosophy: every off-the-shelf spring rate and damper setup is chosen to stay comfortable on daily roads while still delivering real performance at the track. If you want something different, Swift Springs, custom rates, and custom valving are all options at checkout — BC will match the valving of the dampers to whatever springs you pick, something most brands don't offer outside their flagship race lineup.\u003c\/p\u003e \u003cp\u003eSince 2004, BC Racing has grown into one of the most trusted names in aftermarket coilovers — not by racing to the bottom on price, but by pairing that price with real build quality, deep customization options, and a damper design any suspension shop can rebuild instead of replacing. These 3-Series F30 True Rear Coilover coilovers arrive tuned for the 3-Series F30 True Rear Coilover chassis and ready to bolt in — no break-in period, no guessing at setup. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts (pistons, seals, shafts — no unit replacement required when it's time for a rebuild), and in-house tech support from both BC Racing and the Springrates team.\u003c\/p\u003e \u003ch3\u003eFeatures\u003c\/h3\u003e \u003cul\u003e \u003cli\u003e30-level rebound adjustment\u003c\/li\u003e \u003cli\u003e15-level low-speed compression adjustment\u003c\/li\u003e \u003cli\u003e12-level high-speed compression adjustment\u003c\/li\u003e \u003cli\u003eInverted mono-tube damper with linear twin-piston design\u003c\/li\u003e \u003cli\u003eRide height adjustable independent of spring preload\u003c\/li\u003e \u003cli\u003eUpper mount hardware varies by chassis — camber plates, pillowball, or reused OEM mounts. See the Specifications table for what's included on your kit.\u003c\/li\u003e \u003cli\u003eSwift Spring and custom spring rate upgrades available at checkout\u003c\/li\u003e \u003cli\u003eCustom damper valving paired with custom spring rates on request\u003c\/li\u003e \u003cli\u003eFully rebuildable — replacement parts available from BC for the life of the shock\u003c\/li\u003e \u003cli\u003e2-year manufacturer warranty against defects\u003c\/li\u003e \u003c\/ul\u003e \u003ch5\u003eSpecifications\u003c\/h5\u003e \u003ctable class=\"table table-striped table-primary\"\u003e \u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eI-136-ZX\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003ePart Name\u003c\/td\u003e\n\u003ctd\u003eZX Series Coilovers\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eVehicle\u003c\/td\u003e\n\u003ctd\u003e2012-2018 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eDrivetrain\u003c\/td\u003e\n\u003ctd\u003eRWD\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eDamping Adjustment\u003c\/td\u003e\n\u003ctd\u003e3-Way (30 levels rebound 15 LSC 12 HSC)\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eRide-Height Adjustable\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSpring Rate - Front\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSpring Rate - Rear\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCamber Plates - Front\u003c\/td\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCamber Plates - Rear\u003c\/td\u003e\n\u003ctd\u003eNot Applicable\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSuspension Design - Front\u003c\/td\u003e\n\u003ctd\u003eTrue Coilover\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSuspension Design - Rear\u003c\/td\u003e\n\u003ctd\u003eTrue Coilover\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eNotes\u003c\/td\u003e\n\u003ctd\u003eThe ZX Series is not available in Extreme-Low configuration.\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/tbody\u003e \u003c\/table\u003e \u003ch5\u003eVehicle Fitment\u003c\/h5\u003e \u003cul\u003e\n\u003cli\u003e2012 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)\u003c\/li\u003e\n\u003cli\u003e2013 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)\u003c\/li\u003e\n\u003cli\u003e2014 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)\u003c\/li\u003e\n\u003cli\u003e2015 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)\u003c\/li\u003e\n\u003cli\u003e2016 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)\u003c\/li\u003e\n\u003cli\u003e2017 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)\u003c\/li\u003e\n\u003cli\u003e2018 BMW 3 Series F30 True Rear Coilover RWD (3-Bolt Upper Mounts)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":63513693782385,"sku":"I-136-ZX","price":2635.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2534\/9336\/files\/D-17-BR-RS-TRUE-1_3ab52b27-60cc-4988-a020-d96fe0ee7c4d.jpg?v=1777247833","url":"https:\/\/bc.springrates.com\/products\/bc-racing-zx-series-coilovers-2012-2018-bmw-3-series-f30-true-rear-coilover-3-bolt-upper-mounts","provider":"BC Racing - Springrates.com","version":"1.0","type":"link"}