{"product_id":"gp-1-digressive-lexus-is300-00-05","title":"Riaction GP-1 Digressive Coilovers Lexus IS300 (2000–2005)","description":"\u003cp class=\"PDq2pG_selectionAnchorContainer\"\u003eUpgrade the suspension on your 2000–2005 Lexus IS300 with the Riaction GP-1 Digressive Coilover Kit. Designed for street-driven performance builds, the GP-1 combines digressive valving, 32 levels of damping adjustment, and full-length ride height adjustment to provide sharper chassis response with controlled ride quality.\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe GP-1's digressive damping profile provides increased damping force during lower-speed suspension movements to improve cornering stability, reduce body roll, and create a more connected steering and chassis feel. Over faster suspension movements caused by bumps and uneven pavement, the damping characteristics help maintain compliance for a responsive setup without unnecessary harshness.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDigressive Valving Technology:\u003c\/strong\u003e Provides firm low-speed damping control for improved cornering response, reduced body movement, and greater driver feedback while maintaining compliance over uneven surfaces.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e32-Level Damping Adjustment:\u003c\/strong\u003e Fine-tune damper response through 32 settings to suit your driving style, road conditions, and suspension setup.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFull-Length Ride Height Adjustment:\u003c\/strong\u003e Allows you to adjust the IS300's stance while providing greater flexibility when setting up suspension travel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMonotube Damper Design:\u003c\/strong\u003e Provides consistent damping characteristics and efficient heat dissipation during spirited driving.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e52mm Carbon Steel Shock Bodies:\u003c\/strong\u003e Seamless electroplated carbon steel construction provides strength and long-term durability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e44mm High-Flow Aluminum Pistons:\u003c\/strong\u003e CNC-machined 6061 aluminum pistons provide precise and consistent damper operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSAE9254 Cold-Wound Springs:\u003c\/strong\u003e High-strength spring construction designed for consistent suspension performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow Gas Pressure Design:\u003c\/strong\u003e Engineered to provide controlled damper response while maintaining street-oriented ride characteristics.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFully Rebuildable Construction:\u003c\/strong\u003e Serviceable damper construction allows the coilovers to be rebuilt to extend their usable service life.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat's Included\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(2) Front Riaction GP-1 coilovers\u003c\/li\u003e\n\u003cli\u003e(2) Rear Riaction GP-1 coilovers\u003c\/li\u003e\n\u003cli\u003eSpanner wrenches\u003c\/li\u003e\n\u003cli\u003eDamping adjustment knobs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLexus IS300 (2000–2005)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSeries: GP-1 Digressive\u003c\/li\u003e\n\u003cli\u003eDamper Design: Monotube\u003c\/li\u003e\n\u003cli\u003eValving: Digressive\u003c\/li\u003e\n\u003cli\u003eDamping Adjustment: 32 levels\u003c\/li\u003e\n\u003cli\u003eRide Height Adjustment: Full-length\u003c\/li\u003e\n\u003cli\u003eShock Body: 52mm seamless electroplated carbon steel\u003c\/li\u003e\n\u003cli\u003eMcPherson Piston Rod Diameter: 20mm\u003c\/li\u003e\n\u003cli\u003eNon-McPherson Piston Rod Diameter: 14mm\u003c\/li\u003e\n\u003cli\u003eMain Piston: 44mm high-flow CNC 6061 aluminum\u003c\/li\u003e\n\u003cli\u003eFloating Piston: CNC 6061 aluminum\u003c\/li\u003e\n\u003cli\u003eOil Seal: Polyurethane\u003c\/li\u003e\n\u003cli\u003eSpring Material: SAE9254 cold-wound steel\u003c\/li\u003e\n\u003cli\u003eValving: Multi-thickness shims\u003c\/li\u003e\n\u003cli\u003eSuspension Fluid: 7.5W compounded suspension fluid\u003c\/li\u003e\n\u003cli\u003eDamper Construction: Fully rebuildable\u003c\/li\u003e\n\u003cli\u003eWarranty: 2-year factory warranty against manufacturing defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFits Lexus IS300 models from 2000–2005.\u003c\/li\u003e\n\u003cli\u003eFeatures Riaction GP-1 digressive damper valving.\u003c\/li\u003e\n\u003cli\u003eIncludes 32 levels of damping adjustment.\u003c\/li\u003e\n\u003cli\u003eSpring rates were not provided and should be verified for the selected configuration before ordering.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended.\u003c\/li\u003e\n\u003cli\u003eA four-wheel alignment is recommended after installation or ride height adjustment.\u003c\/li\u003e\n\u003cli\u003eInternational customers should contact Riaction Performance Shocks regarding international ordering requirements.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Choose Riaction GP-1 Digressive Coilovers?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe Riaction GP-1 is designed for IS300 owners who want a more responsive suspension setup with greater chassis control without simply making the ride excessively stiff. Digressive valving increases damping control during lower-speed suspension movements associated with cornering, braking, acceleration, and weight transfer while maintaining compliance during faster damper movements.\u003c\/p\u003e\n\u003cp\u003eCombined with 32-level damping adjustment, full-length ride height adjustment, a fully rebuildable monotube design, and a 2-year factory warranty, the GP-1 provides IS300 enthusiasts with a highly adjustable suspension package for performance-oriented street builds.\u003c\/p\u003e","brand":"Riaction Performance Shocks","offers":[{"title":"Default Title","offer_id":52141483622721,"sku":"LX-006-D-SS","price":1250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0835\/9362\/5921\/files\/riaction-gp-1-digressive-coilovers-lexus-is300-2000-2005-2750389.jpg?v=1787887577","url":"https:\/\/lunaticsco.com\/products\/gp-1-digressive-lexus-is300-00-05","provider":"LunaticsCo","version":"1.0","type":"link"}