Head Diameter: 1.590 in. - Stem Diameter: 0.3136 in. - O/A : 4.923 in. 2018 chevrolet camaro All tubes are CNC cut

All tubes are CNC cut

Black Anodized 6061-T6 aluminum turnbuckles work in conjunction with the left and right hand threaded rod ends for simple and precise adjustment

BBK Performance short mid H pipes with catalytic converters are specifically designed to be used with BBK full Length exhaust headers to complete the exhaust installation to your cars cat back exhaust system

BMRs Premium K-Member (KM734) weighs only 29 pounds and is designed for street performance

Head Diameter: 1.590 in. - Stem Diameter: 0.3136 in. - O/A : 4.923 in. 2018 chevrolet camaro All tubes are CNC cutDiscover the extraordinary capabilities of Manley Performance Products' Extreme Duty Series Valves. Engineered to cater to the demanding needs of Top Fuel and Funny Car drag racers, Big Block Chevy marine enthusiasts, and Small Block Chevy restricted carburetor circle track competitors, these valves are your ticket to unparalleled performance.