Thread: GMPP tunes
View Single Post
Old 05-13-2009, 09:37 PM   #4
LosXC451

 
LosXC451's Avatar
 
Drives: 2010 SS SIM w/ RS
Join Date: Feb 2009
Location: Miami, Fl
Posts: 1,222
From what I read GMPP tunes are tunes from GM that do NOT void your warrenty if it messes anything up. I just want to know more about them.
LosXC451 is offline   Reply With Quote