Hooker LS Cast Iron Exhaust Manifolds will provide years of leak-free performance with less under hood noise than traditional headers. They are 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. Not compatible with 2004-2006 GTO starters/bellhousings. Although designed as a stock replacement, this product does not have a C. A. R. B. Executive Order Exemption and therefore may or may not be legal for any particular pollution controlled application. Check with your state or local governmental authority regarding approval for your application. Have been validated thus far for fitment on 1970-81 GM F-bodies, 82-88 GM G-bodies and 68-72 GM A-bodies.

In 1962, future SEMA Hall of Famer Gary Hooker designed and manufactured a one of a kind header that boosted the performance of his new Chevrolet. Upon placing it on other cars, he found that the headers were responsible for increasing the car's speed and power. This became the foundation for Hooker Headers and the company was established in South Ontario, California.

The cutting-edge headers became the toast of the racing world and the company became more legendary for providing the headers of nearly all National Hot Rod Association champions. Using this as a platform, Hooker Headers grew from a $100K company in 1966 to a $3 million giant in 1969. This growth was fueled by the company's pursuit of innovation in the header market. Some of their breakthroughs include the development of the straight-thru glass pack mufflers, a new thermal barrier ceramic coating, the Aerochamber muffler, engine swap headers, and the use of stylish black ceramic coating. Today, Hooker is one of the most recognized brands in the world of racing and performance aftermarket.