Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors 91619059 Drilled for safety wire

Drilled for safety wire

13 x 4 x 5 in

5-6 pulse ignition signals (1-12 cyl engines)

while internal machining helps to reduce weight

Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors 91619059 Drilled for safety wire100% 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