Bosch Motorsport components are the product of choice for many of the world's top racing teams
The outlet can be identified by the mounting bracket welded to the endcap
1965-1966 Chevrolet Suburban
Today's all-out race engines demand the highest quality components at every step
Unique design eliminates timing movement throughout rpm range
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