Brian Crower Dual Valve Springs B18 B18C B18C1 B16 B16A B16A2 B17A KA24DE. Designed for high rpm, BC valve springs are wound from only the highest grade, super clean, chrome silicone alloy and feature proprietary processing procedures for consistent pressures. B18C1 B16A2 B17A KA24DE VALVE SPRING KIT. 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 "Brian Crower Dual Valve Springs B18 B18C B18C1 B16 B16A B16A2 B17A KA24DE" is in sale since Thursday, February 26, 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.