Schoenfeld Turnout - 4" Diameter FR Underwear Bottom The rev limiter's small size

The rev limiter's small size permits installation in even the most crowded engine compartment

31 in OD Tube

Gasket and Seal

165" Valve Pocketed Gasket Bore

Schoenfeld Turnout - 4" Diameter FR Underwear Bottom The rev limiter's small sizeSlides over tube. Started in 1974, Schoenfeld is known for custom fabricated headers for all forms of circle track racing. Schoenfeld Headers is the worlds largest manufacturer of circle track headers, but they specialize in a variety of high quality exhaust parts, including turn downs, extensions, tubing bends and elbows, race mufflers, insert mufflers, mandrel bends, exhaust reducers, header gaskets, and more. Product Description: Exhaust Tip Clamp