K-Farms F-yea May 7, 2015 #2 I have tried the others SPE, and demonic diesel. The gear head tunes are IMO the best out there. Much smoother running then the other custom tunes. Trans shifts awesome too.
I have tried the others SPE, and demonic diesel. The gear head tunes are IMO the best out there. Much smoother running then the other custom tunes. Trans shifts awesome too.