Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors 91619059 289 and 302 Small Block

289 and 302 Small Block

Works with stock and aftermarket headers and exhaust systems

while internal machining helps to reduce weight

Drilled for safety wire

Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors 91619059 289 and 302 Small Block100% 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