Schoenfeld IMCA Headers - 1-5/8" Diameter - Standard SB Chevy 29000R 2-5/8 in Thick

2-5/8 in Thick

When the shifter handle is pulled into low gear

Just what you'd expect from the world's most experienced (and most winning) exhaust brand

6 x 9 in Base Diameter

Schoenfeld IMCA Headers - 1-5/8" Diameter - Standard SB Chevy 29000R 2-5/8 in ThickIMCA Modified Headers fit D&M, Dirt Works, Swartz , etc. Straight out design, one piece welded construction. 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