Hooker Exhaust Manifolds - GM LS (except LS7/LS9) - Black Ceramic Finish (Pair) Helmet Air System Blower Filter Nuts are often used when

Nuts are often used when the back side of a fastener is not accessible and they allow quicker installation and/or removal of chassis components

Fits Aisin AX15 Transmissions

Every part manufactured by Harwood is built exclusively in our 6 acre facility by experienced composite technicians who take pride in their work and appreciate seeing the final results of their efforts on a customer's car

1957-1978 Plymouth Fury

2014-2015 Infiniti QX70

Hooker Exhaust Manifolds - GM LS (except LS7/LS9) - Black Ceramic Finish (Pair) Helmet Air System Blower Filter Nuts are often used whenHooker 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