Supertech Honda S2000 F20C F22C K20A2 95lb Dual Valve Springs Ti Retainer Kit. Supertech valve springs are made with premium Super Clean Chrome silicon Vanadium Steel alloy for the highest performance and durability at high rpm's. Computer designed to ensure that wire stress levels do not overpass the limits of stress defined in the diagrams of fatigue for long durability under extreme conditions. Computer software also allows us to make sure that the harmonics are well under control.The retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability. Please message us for a Return Authorization Number before sending anything back to avoid processing delays. Real Street Performance is unlike most "Race Shops". We are a fully functioning wholesale and retail distribution warehouse in addition to a dyno-equipped tuning and engine building facility. Our sales center and order fulfillment center operates with state of the art, industry leading software that allows us to get you ALL of the parts you need for your build quickly and correctly the first time without the headaches or excuses. Sign up to our Newsletter. The item "Supertech Honda S2000 F20C F22C K20A2 95lb Dual Valve Springs Ti Retainer Kit" is in sale since Tuesday, February 10, 2015. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Engines & Components\Valves & Parts". The seller is "realstreetrsp" and is located in Sanford, Florida. This item can be shipped worldwide.