Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors 91619059 Simpson's utilizes its unique 4-way

Simpson's utilizes its unique 4-way stretch material to provide exceptional TPP performance as well as ensure proper fit and excellent driver hand mobility

289 and 302 Small Block

Works with stock and aftermarket headers and exhaust systems

this mounting solution attaches to the factory pillar effortlessly by utilizing the included mounting hardware

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

Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors 91619059 Simpson's utilizes its unique 4-way100% 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