{"product_id":"supertech-dual-valve-springs-kit-miata-bp-177-lbs","title":"Supertech Dual Valve Springs Kit Miata BP 177 lbs","description":"\u003cp\u003eâ?\u003csupertech valve springs are computer designed to ensure smooth harmonics under high rpm and load. the stress levels kept control fatigue is reduced for long durability extreme conditions. these made of premium superclean chrome silicon vanadium steel alloy which a tough that was higher performance at memory retention.\u003e\u003cbr\u003e\u003cb\u003eSpecs:\u003c\/b\u003e\u003c\/supertech\u003e\u003c\/p\u003e\u003cdiv style=\"margin-left: 2em\"\u003e\u003cdiv style=\"margin-left: 2em\"\u003e\n\u003cul\u003e\n\u003cli\u003eOuter Spring O.D.: 27.50mm\u003c\/li\u003e\n\u003cli\u003eOuter Spring I.D.: 20.00mm\u003c\/li\u003e\n\u003cli\u003eInner Spring O.D.: 20.00mm\u003c\/li\u003e\n\u003cli\u003eInner Spring I.D.: 15.20mm\u003c\/li\u003e\n\u003cli\u003eSeat: 74 @ 34.20 (lbs@mm)\u003c\/li\u003e\n\u003cli\u003eOpen (lift): 177 @ 10.5 (lbs@mm)\u003c\/li\u003e\n\u003cli\u003eMax net lift: 13.00mm\u003c\/li\u003e\n\u003cli\u003eCoil bind: 20.70mm\u003c\/li\u003e\n\u003cli\u003eRate: 12.10 lbs\/mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRetainer P\/N: RET-TS60\/MA2 + (16) SEAT-TS\/MA18I+OEM (use '97 + Cotters)\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eNote:\u003c\/b\u003e This is for a complete set of dual intake and exhaust valve springs, \u0026amp; retainers and spring seats.\u003c\/p\u003e\n\u003cp\u003e** Images shown may vary from actual product **\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/div\u003e","brand":"FR SPORT","offers":[{"title":"Default Title","offer_id":50670804107402,"sku":"04X2H","price":701.37,"currency_code":"USD","in_stock":false}],"url":"https:\/\/pistontwistin.org\/products\/supertech-dual-valve-springs-kit-miata-bp-177-lbs","provider":"Piston Twistin LLC","version":"1.0","type":"link"}