I think thats still called ....TUNING......
I think thats still called ....TUNING......
Vortec Performance Tuned
LQ9 built 4L60 LTs and a billion miles on the speedo!
2003 Silverado RCSB
LQ9 6.0l, PS longtube, CAI, E-Fans and a custom tune via hptuners
2003 Silverado RCSB
LQ9 6.0l, PS longtube, CAI, E-Fans and a custom tune via hptuners