{"product_id":"kelford-kvs58-bt-performance-valve-springs-titanium-retainers-toyota-gr-supra-a90-mk5-bmw-b58-gen-2","title":"Kelford KVS58-BT Performance Valve Springs \u0026 Titanium Retainers - Toyota GR Supra A90 MK5 \/ BMW B58 Gen 2","description":"\u003cdiv class=\"n6owBd awi2gc\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eEliminate engine-damaging valve float at high RPMs\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e by swapping your factory valvetrain out for this high-stress beehive valve spring kit. Purpose-built to handle aggressive aftermarket camshaft lift profiles like the Kelford 258-A performance series, these springs provide the necessary seat pressure to manage extreme boost levels up to screaming engine thresholds. They serve as a vital hardware insurance policy for built track setups, drag cars, and high-horsepower street builds pushing past stock limits.\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eLighten your valvetrain moving mass significantly\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e using the included precision-engineered titanium retainers to improve overall throttle responsiveness and high-frequency valve stability. By shedding critical moving weight directly from the cylinder head assembly, this kit prevents destructive spring surge and harmonic vibration under heavy load conditions. The premium compound architecture ensures ultimate structural resistance against severe thermal fatigue, making it perfect for sustained racing workloads ranging from 550 to over 750+ horsepower.\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"n6owBd awi2gc\"\u003e\n\u003cstrong class=\"rQesXe MPyX\"\u003eDeploy a complete high-performance valvetrain refresh\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e engineered directly for a precise physical fit into your modern 24-valve turbo cylinder head architecture. Unlike basic drop-in configurations that force you to retain heavy stock steel hardware, this comprehensive bundle upgrades the entire top section of your assembly simultaneously. Every kit comes entirely complete with premium beehive springs and ultra-strong titanium retainers to ensure total reliability during severe track racing use.\u003c\/div\u003e","brand":"N1 Racing Team","offers":[{"title":"Default Title","offer_id":48518866108657,"sku":null,"price":3000.0,"currency_code":"MYR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/1755\/4673\/files\/Kelford1_7f21c54d-d486-4086-adb2-c0aa84f19f37.webp?v=1786185027","url":"https:\/\/n1racingteam.com\/products\/kelford-kvs58-bt-performance-valve-springs-titanium-retainers-toyota-gr-supra-a90-mk5-bmw-b58-gen-2","provider":"N1 Racing Team","version":"1.0","type":"link"}