I have the stock file I read out of my brother's 2009 Colorado 3.7 I5.
I have the stock file I read out of my brother's 2009 Colorado 3.7 I5.
2001 Chevrolet K2500HD Duramax
Suncoast SCIV 1056
Kennedy twin lift pumps
Billet pick up
MBRP 4" exhaust
Air intake horn mod
ARP head studs
A few more go fast/truck pulling goodies!
Tuned with EFI
12.65 @ 107 1.71 60'