Calibration Set-up comes with:
Spring, Roller Set & 1328 Ramp Set.
**Choose cover separately
*By flipping 2 Ramps from A side to B side you will increase your Engagement by about 600-800 RPM
*By flipping all 4 Ramps to B side you can increase your Engagement RPM even higher
*Pictures may not represent exact parts for your selected set-up.