S&S Power Tune XTO Insert Tuner Kit

The Power Tune XTO Insert kit was developed for tuning power and sound. The dealer 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. This allows the exhaust to be perfectly tuned, both sound and power.