This is an add-on fee for having us tune your vehicle using DiabloSport's CMR software for their handheld programmers. This fee is due to the added time it takes to tune a vehicle via an old archaic software.

***Failure to add this to your purchase at the time of check out will result in prolonged tuning time until you've gone back and added this to complete your purchase.***

DiabloSport Add-On Fee