{"product_id":"manley-circle-track-roller-polished-nextek-series-valve-springs","title":"Manley Circle Track Roller Polished NexTek Series Valve Springs","description":"From drag strips to short track and endurance circuits, the Manley NexTek® series is engineered for serious racers. NexTek® springs resist pressure loss and valve-train degradation even in the most demanding race conditions. That means more consistent spring force deep into a run, reduced valve bounce, and improved overall stability for high-RPM performance. Built to outperform and outlast in real-world competition.","brand":"Manley Performance","offers":[{"title":"Default Title","offer_id":40657318936681,"sku":"MAN221441P-16","price":609.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2600\/1038\/products\/d5d40c7892594cb55df535f7f5e4a6f4_72f8583c-07cc-47da-b9ed-264e1f7587d1.jpg?v=1685513615","url":"https:\/\/store.sp-power.com\/products\/manley-circle-track-roller-polished-nextek-series-valve-springs","provider":"SP Engineering","version":"1.0","type":"link"}