DK Custom Thunder Torque Insert Set Fits 3 Inch & Larger Exhausts - Fits 3" diameter & larger exhausts

Fits 3" diameter & larger exhausts

Enhance your V-Twin's performance with the DK Custom Thunder Torque Insert Set, designed for exhausts with a 3 inch diameter or larger. These patented inserts are engineered to increase low and mid-range torque by boosting exhaust gas velocity and inertial scavenging. Finished in a high-temp powder coat, each set features stainless steel 5/16" studs and includes all necessary hardware for an easy installation. Adjustable for sound volume and tone, these inserts bolt directly into the end of your slip-on muffler using the existing baffle bolt hole. Proudly made in the USA.