{"product_id":"hks-85-91-corolla-gts-85-89-mr2-valve-spring-set-hks2201-rt004","title":"HKS [85-91 Corolla GTS] [85-89 MR2] Valve Spring Set - HKS2201-RT004","description":"HKS 85-91 Toyota Corolla GTS \/ 85-89 MR2 Valve Spring Set\n\u003cp\u003eThe HKS Valve Spring Set is designed for select 1985-1991 Toyota Corolla GTS and 1985-1989 Toyota MR2 applications. Manufactured by HKS, this replacement performance component is identified by part number HKS2201-RT004 and is intended to support reliable valve-train operation in compatible engines.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eApplication: Fits 1985-1991 Toyota Corolla GTS and 1985-1989 Toyota MR2 models\u003c\/li\u003e\n\u003cli\u003eBrand and Part Number: HKS, HKS2201-RT004\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesigned as a vehicle-specific valve spring set, this HKS component is suitable for engine builds, restoration projects, and replacement applications where the original valve springs require service. Proper valve spring function is essential for maintaining consistent valve control and supporting dependable operation throughout the engine’s operating range. The set is intended for direct compatibility with the listed Toyota applications, helping simplify installation when servicing the cylinder head or refreshing related valve-train components.\u003c\/p\u003e\n\u003cp\u003eVerify the vehicle year, model, engine configuration, and installation requirements before ordering. Professional installation is recommended, and all related valve-train components should be inspected to ensure compatibility and proper operation. This product is supplied as one set under HKS part number HKS2201-RT004.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eApplication: Designed for 1985-1991 Toyota Corolla GTS models\u003c\/li\u003e\n\u003cli\u003eApplication: Designed for 1985-1989 Toyota MR2 models\u003c\/li\u003e\n\u003cli\u003eComponent: Valve spring set for compatible engine valve trains\u003c\/li\u003e\n\u003cli\u003eBrand: HKS\u003c\/li\u003e\n\u003cli\u003ePart Number: HKS2201-RT004\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\n\u003cbr\u003e\n\u003cbr\u003e\nAir Freight Prohibited: false\u003cbr\u003e\nNot Carb Approved: false\u003cbr\u003e\nLtl Freight Required: false\u003cbr\u003e\nProp 65: Unknown\u003cbr\u003e\nPart Type: automotive\u003cbr\u003e\nEpa: N\/A\u003cbr\u003e\nCarb Acknowledgement Required: false\u003cbr\u003e\nRegular Stock: false\u003cbr\u003e\nUnits Per Sku: 1","brand":"HKS","offers":[{"title":"Default Title","offer_id":47258187235430,"sku":"hks2201-RT004","price":188.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/8703\/7237\/files\/f09081058a36d21f52faacdc78ef8dd6.jpg?v=1790175641","url":"https:\/\/jdmuscleusa.com\/products\/hks-85-91-corolla-gts-85-89-mr2-valve-spring-set-hks2201-rt004","provider":"JDMuscle","version":"1.0","type":"link"}