{"product_id":"bc-racing-zx-series-coilovers-1998-2005-lexus-gs300-jzs160-161","title":"BC Racing ZX Series Coilovers for 1998-2005 Lexus GS300 RWD (JZS160\/JZS161)","description":"\u003cp\u003eBC Racing ZX Series Coilovers for the 1998-2005 Lexus GS300 (JZS160\/JZS161) 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 GS300 chassis and refined until it balances ride quality with performance — the reason GS300 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. The off-the-shelf setup from BC Racing is deliberately balanced — spring rates and valving chosen so the kit feels comfortable day-to-day without giving up performance when you push it. Drivers who want a different recipe can spec Swift Springs, custom spring rates, or fully custom valving at checkout; BC will tune the dampers to match, which is a depth of customization most brands only offer on their top-tier kits.\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 GS300 coilovers arrive tuned for the GS300 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\u003eR-03-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\u003e1998-2005 Lexus GS300 RWD (JZS160\/JZS161)\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\u003eChassis Code\u003c\/td\u003e\n\u003ctd\u003eJZS160\/JZS161\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\u003e10 kg\/mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSpring Rate - Rear\u003c\/td\u003e\n\u003ctd\u003e8 kg\/mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSpring Size - Front\u003c\/td\u003e\n\u003ctd\u003e62-200-10K\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSpring Size - Rear\u003c\/td\u003e\n\u003ctd\u003e62-220-8K\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSwift Springs - Front\u003c\/td\u003e\n\u003ctd\u003e62-203-X\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eSwift Springs - Rear\u003c\/td\u003e\n\u003ctd\u003e62-228-X\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eCamber Plates - Front\u003c\/td\u003e\n\u003ctd\u003eNot Applicable\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 \u003cli\u003e1998 Lexus GS300 RWD (JZS160\/JZS161)\u003c\/li\u003e \u003cli\u003e1999 Lexus GS300 RWD (JZS160\/JZS161)\u003c\/li\u003e \u003cli\u003e2000 Lexus GS300 RWD (JZS160\/JZS161)\u003c\/li\u003e \u003cli\u003e2001 Lexus GS300 RWD (JZS160\/JZS161)\u003c\/li\u003e \u003cli\u003e2002 Lexus GS300 RWD (JZS160\/JZS161)\u003c\/li\u003e \u003cli\u003e2003 Lexus GS300 RWD (JZS160\/JZS161)\u003c\/li\u003e \u003cli\u003e2004 Lexus GS300 RWD (JZS160\/JZS161)\u003c\/li\u003e \u003cli\u003e2005 Lexus GS300 RWD (JZS160\/JZS161)\u003c\/li\u003e \u003c\/ul\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":63498213425521,"sku":"R-03-ZX","price":2545.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2534\/9336\/files\/bc-racing-zr-series-hero.jpg?v=1740535651","url":"https:\/\/bc.springrates.com\/products\/bc-racing-zx-series-coilovers-1998-2005-lexus-gs300-jzs160-161","provider":"BC Racing - Springrates.com","version":"1.0","type":"link"}