Tuning '08 GXP
#1
Tuning '08 GXP
Just bought a GXP last weekend and want to play with the tune. Have HPTuners and have pulled the stock tune. It seems that I can't do anything with it as HPT says it isn't supported yet?
So what's everybody using? I'd rather stay with HPT since I've had that since '05 but don't know when I can use it.
So what's everybody using? I'd rather stay with HPT since I've had that since '05 but don't know when I can use it.