High-temperature stainless steel cones have fully radiused edges that smooths out the power curve for improved engine response, especially low-end torque Generates correct levels of backpressure for increased horsepower Fit most stock and aftermarket exhaust systems; fit 1-3/4"-2" i.d. exhaust pipes New Vortex design increases back pressure, improving torque and horsepower Made in the U.S.A.. TORQUE CONES VORTEX
