Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors V202301 The NecksGen REV unit offers

The NecksGen REV unit offers exceptional comfort due the placement of the device on the large trapezoid muscle on the rear of the shoulder with a cutout around the spinal section of the driver

Nickel-Cobalt Alloy

1982-1986 Chevrolet G30

checking springs are a necessity

Manual upshift / trigger button allows for driver override and testing in the pits

Dynatech Vortex Cone Insert Muffler - Slips Into 3-1/2" Collectors V202301 The NecksGen REV unit offers100% 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