DK Custom Products Thunder Torque Insert - 3in. Diameter & Larger Set - DK-TTI-258W

High-Temp powder coat finish
Stainless steel studs (5/16in. diameter)
Includes all hardware
Increases low & mid range torque
Increased exhaust gas velocity
Increased inertial scavenging
Adjustable Sound Volume & Tone
E-Z Installation bolts into the end of the slip-on muffler (using the baffle bolt hole)
Patented Technology
Made in The USA