{"product_id":"manley-circle-track-roller-polished-nextek-series-valve-springs","title":"Manley Performance Roller Polished NexTek Series Valve Springs fits Circle Track","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":44491859394767,"sku":"MAN221441P-16","price":609.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0549\/4164\/7055\/files\/Manley-Circle-Track-Roller-Polished-NexTek-Series--1758657404.webp?v=1758657405","url":"https:\/\/www.cimotorsports.com\/products\/manley-circle-track-roller-polished-nextek-series-valve-springs","provider":"CI Motorsports","version":"1.0","type":"link"}