Power Tune® XTO Insert Kit
Includes two each of the 1.375", 1.5", 1.625", 1.75" plugged front with 3.5mm holes, 1.75" plugged rear with 3.5mm holes, 1.875", 2", 2.25", and one 1.75" plugged
Tunable inserts allow for easy sound and power adjustment
Power and torque tuning
Tone and sound adjustment
Easy to install