{"product_id":"bc-racing-ds-series-r-09-ucf10","title":"BC Racing DS Series Coilovers for 1990-1994 LS400 RWD (UCF10)","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eUpgrade the suspension on your 1990–1994 Lexus LS400 RWD with the BC Racing DS Series Coilovers. Engineered specifically for the UCF10 chassis, the DS Series combines the proven monotube architecture and extensive adjustability of BC Racing's popular BR Series with proprietary digressive piston technology for drivers seeking sharper response and greater chassis control.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eDigressive valving generates increased damping force at lower piston velocities, improving control during roll, pitch, brake dive, and rapid weight transitions. At higher piston velocities, damping becomes more linear to help maintain compliance over bumps and uneven pavement. Combined with 30-click damping adjustment, full-length ride height adjustment, and chassis-specific spring rates, the DS Series provides a highly tunable suspension package for performance-oriented LS400 builds.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eDigressive Piston Valving:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e BC Racing's proprietary digressive piston increases low-speed damping force for sharper response during cornering, braking, acceleration, and quick weight transitions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003e30-Click Damping Adjustment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Simultaneously adjusts compression and rebound through 30 settings, allowing you to fine-tune suspension behavior for your preferred driving conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eFull-Length Ride Height Adjustment:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Allows vehicle height to be adjusted independently from spring preload, helping preserve suspension travel and damper performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eMonotube Damper Design:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Provides consistent damping performance and effective heat dissipation during demanding street and performance driving.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eChassis-Specific Spring Rates:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Features 12 kgf\/mm front and 8 kgf\/mm rear spring rates selected specifically for the LS400 UCF10 platform.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSatin Chrome Shock Bodies:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Distinctive satin chrome damper bodies visually differentiate the DS Series from BC Racing's BR Series.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSwift Spring Option:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Compatible with optional 62mm ID Swift Springs for enthusiasts looking to further customize their suspension setup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhat's Included\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e(1) BC Racing DS Series Coilover Kit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFront coilover assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRear coilover assemblies\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMatched front and rear springs\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAdjustment hardware where applicable\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eVehicle Fitment\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eLexus LS400 RWD UCF10 (1990–1994)\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBC Racing SKU: R-09-DS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSeries: DS\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDamper Design: Monotube\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDamping Adjustment: 30-click simultaneous compression and rebound\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFront Spring: 62-200-12 kgf\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRear Spring: 62-220-8 kgf\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFront Spring Rate: 12 kgf\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRear Spring Rate: 8 kgf\/mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOptional Front Swift Spring: 62-203-X\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eOptional Rear Swift Spring: 62-228-X\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eShock Body Finish: Satin Chrome\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eImportant Notes\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFits Lexus LS400 RWD UCF10 models from 1990–1994.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBC Racing SKU: R-09-DS.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDesigned specifically for rear-wheel-drive applications.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSwift Springs are optional and may be sold separately depending on the selected configuration.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVerify chassis code, drivetrain, model year, and selected spring configuration before ordering.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eProfessional installation is recommended.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eA four-wheel alignment is recommended after installation and ride height adjustment.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cstrong\u003e\u003cspan\u003eWhy Choose BC Racing DS Series Coilovers?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eBC Racing's DS Series is designed for enthusiasts who want greater chassis response than a conventional street coilover while retaining the adjustability needed for a versatile performance build. The digressive piston provides increased control during low-speed damper movements, helping the LS400 feel more responsive through corners, braking zones, and rapid transitions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWith 30-click damping adjustment, full-length ride height adjustment, chassis-specific spring rates, and optional Swift Springs, the DS Series gives LS400 owners extensive control over both stance and suspension behavior.\u003c\/span\u003e\u003c\/p\u003e","brand":"BC Racing","offers":[{"title":"Default Title","offer_id":51994398064961,"sku":"BCR-DS-R-09","price":1395.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0835\/9362\/5921\/files\/bc-racing-ds-series-coilovers-for-1990-1994-ls400-rwd-ucf10-1699629.webp?v=1786704373","url":"https:\/\/lunaticsco.com\/products\/bc-racing-ds-series-r-09-ucf10","provider":"Lunaticsco","version":"1.0","type":"link"}