Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors Brawler Carburetors Bosch Motorsport components are the

Bosch Motorsport components are the product of choice for many of the world's top racing teams

394 in Oval Port

Unique design eliminates timing movement throughout rpm range

The outlet can be identified by the mounting bracket welded to the endcap

Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors Brawler Carburetors Bosch Motorsport components are the100% T 304 Stainless Steel Construction Compact Size Fits All Racing Applications Ultra Lightweight Less Than 1 2 lb. each Little or No Power Loss Easy Bolt Installation Insert Cones on 3", 3 1 2", 4", 4 1 2", 5" Turn Down with Insert Cone in 3", 3 1 2", 4" How It Works: The Vortex Insert Cone, installed near the exit of the header collector or muffler outlet, provides a large friction area to reflect and dissipate sound energy, thus reducing the dB