Open up your exhaust with Dynomax cutouts.
Use these Dynomax exhaust cutouts to let your engine breathe easier, by dumping the exhaust gas after the headers or manifolds and running the exhaust "open" for maximum flow. They are constructed of Dynomax's exclusive T-409 stainless steel, which offers superior corrosion protection to similar products. The Dynomax exhaust cutouts are available in 2 1/4 in., 2 1/2 in., 3 in., 3 1/2 in., and 4 in. diameters, allowing for installation on musclecars, trucks, and popular diesel applications. They feature a loose flange design for applications with tight floor plan clearance, and include gaskets, hardware, and a block-off plate. Whether you want to run a faster quarter-mile or turn heads at the car show, choose these Dynomax exhaust cutouts.