Supertech Retainers are manufactured with high quality military certified Titanium alloy, CNC machined for a tight fit that will ensure a long durability.
Supertech Titanium Retainers for Honda/Acura B16A, B18C, H22A, K20A, K20A2, K24A, F20C and F22C VTEC engines. NOTE: For use with Supertech H1000 Series valve springs Only