Thunder Torque Inserts

Thunder Torque Inserts 118 Model Family

Thunder Torque Inserts by DK Custom bolt into mufflers slip on's to increase low & mid range

Thunder Torque Inserts™ Increase Low & Mid Range Torque 

They work w/ Full Systems, Slip-on Mufflers, Drag Pipes, and Shortys.

Patented.

  • Price: $18.95

Thunder Torque Inserts 158 Model Family

Thunder Torque Inserts by DK Custom bolt into mufflers slip on's to increase low & mid range

Thunder Torque Inserts™ Increase Low & Mid Range Torque

They work w/ Full Systems, Slip-on Mufflers, Drag Pipes and Shortys.

Patented.

  • Price: $18.95

Thunder Torque Inserts 258 Model Family

Thunder Torque Inserts by DK Custom bolt into mufflers slip on's to increase low & mid range

Thunder Torque Inserts™ Increase Low & Mid Range Torque

They work w/ Full Systems, Slip-on Mufflers, Drag Pipes and Shortys.

Patented.

  • Price: $18.95