Schoenfeld D.I.R.T Modified Header 602 Crate 1-5/8in 42050BL 63%-208% increase is sway bar

63%-208% increase is sway bar rate (rear)

165gph supports from stock up to 900hp

24 in W x 19 in H x 2

along with four spring rate options

Holley is now offering budget friendly fabricated intake manifolds for LS

Schoenfeld D.I.R.T Modified Header 602 Crate 1-5/8in 42050BL 63%-208% increase is sway barProduct Description: Headers DIRT Modified 1. 625 in Primary 3 in Collector Steel Black Paint Small Block Chevy Pair 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,