Add the power of a Thunderbolt Dash to your 6.4L with power levels up to an additional 315 RWHP!  The Thunderbolt is not only a tuner, but an electronic gauge package.

Add the power of a Thunderbolt Gauge to your 6.4L with power levels up to an additional 315 RWHP!  The Thunderbolt is not only a tuner, but an electronic gauge package.