Hooker Exhaust Manifolds - GM LS (except LS7/LS9) - Silver Ceramic Finish BR40014 The umbrella seals require no

The umbrella seals require no machining

Manufactured from high quality zi

brushless motors produce lower noise and deliver higher reliability

A must for high cylinder pressure

Hooker Exhaust Manifolds - GM LS (except LS7/LS9) - Silver Ceramic Finish BR40014 The umbrella seals require noHooker cast iron exhaust manifolds have been designed to hug close to the engine block so they fit into a wide variety of replacement and engine swap applications. Their contoured design aims the exhaust directly at the exit port for improved flow. Being cast iron means they will provide years of leak free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame