{"product_id":"supertech-valve-spring-kit-1990-2005-mazda-miata-na-nb-1-6l-1-8l","title":"Supertech Valve Spring Kit - 1990-2005 Mazda Miata (NA\/NB) 1.6L \/ 1.8L","description":"\u003cp\u003eSupertech valve spring kit with titanium retainers, single or dual springs. Valve locks are required for any NA6 or NA8 head using these valve spring kits. Choose \"Included\" to add 2 sets of 16 Supertech valve locks.\u003cbr\u003e\u003cbr\u003eSupertech's ratings:\u003cbr\u003e1990-1993 (1.6L) Single - 65 lb: 65 lb @ 33.6 mm seat, 158 lb @ 10.0 mm open, 9.60 lb\/mm\u003cbr\u003e1990-1993 (1.6L) Dual - 74 lb: 74 lb @ 35.0 mm seat, 195 lb @ 10.0 mm open, 12.10 lb\/mm\u003cbr\u003e1994-2005 (1.8L) Single - 63 lb: 63 lb @ 33.6 mm seat, 157 lb @ 10.0 mm open, 9.60 lb\/mm\u003cbr\u003e1994-2005 (1.8L) Dual - 75 lb: 75 lb @ 33.6 mm seat, 170 lb @ 10.0 mm open, 9.60 lb\/mm\u003cbr\u003e1994-2005 (1.8L) Dual - 85 lb: 85 lb @ 33.6 mm seat, 205 lb @ 10.0 mm open, 12.10 lb\/mm\u003c\/p\u003e","brand":"Supertech","offers":[{"title":"1990-1993 (1.6L) \/ Single - 65 lb \/ Not Included","offer_id":67909842272455,"sku":"NM-9D6012","price":564.83,"currency_code":"USD","in_stock":false},{"title":"1990-1993 (1.6L) \/ Single - 65 lb \/ Included (2 sets of 16)","offer_id":67909842305223,"sku":"NM-7FF7AE","price":670.91,"currency_code":"USD","in_stock":false},{"title":"1990-1993 (1.6L) \/ Dual - 74 lb \/ Not Included","offer_id":67909842337991,"sku":"NM-B793E2","price":630.57,"currency_code":"USD","in_stock":true},{"title":"1990-1993 (1.6L) \/ Dual - 74 lb \/ Included (2 sets of 16)","offer_id":67909842370759,"sku":"NM-82E792","price":736.65,"currency_code":"USD","in_stock":true},{"title":"1994-2005 (1.8L) \/ Single - 63 lb \/ Not Included","offer_id":67909842403527,"sku":"NM-5304F6","price":564.83,"currency_code":"USD","in_stock":true},{"title":"1994-2005 (1.8L) \/ Single - 63 lb \/ Included (2 sets of 16)","offer_id":67909842436295,"sku":"NM-3EF40B","price":670.91,"currency_code":"USD","in_stock":true},{"title":"1994-2005 (1.8L) \/ Dual - 75 lb \/ Not Included","offer_id":67909842469063,"sku":"NM-55CFD3","price":644.66,"currency_code":"USD","in_stock":true},{"title":"1994-2005 (1.8L) \/ Dual - 75 lb \/ Included (2 sets of 16)","offer_id":67909842501831,"sku":"NM-774E34","price":750.74,"currency_code":"USD","in_stock":true},{"title":"1994-2005 (1.8L) \/ Dual - 85 lb \/ Not Included","offer_id":67909842534599,"sku":"NM-0DF538","price":630.57,"currency_code":"USD","in_stock":true},{"title":"1994-2005 (1.8L) \/ Dual - 85 lb \/ Included (2 sets of 16)","offer_id":67909842567367,"sku":"NM-9EE355","price":736.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0635\/3659\/5143\/files\/supertech-valve-spring-kit-1990-2005-mazda-miata-na-nb-1-6l--1.jpg?v=1791934250","url":"https:\/\/www.nappmotorsports.com\/products\/supertech-valve-spring-kit-1990-2005-mazda-miata-na-nb-1-6l-1-8l","provider":"Napp Motorsports","version":"1.0","type":"link"}