New Guy, 04 Sierra VHO
#1
New Guy, 04 Sierra VHO
Just came across this trying to find info on my VHO. Bought my truck in May and have 6k miles and will start doing performance mods soon. Hypertech says they will have a programmer specific to the lq9 out in a few months, unable to find a cat back so far. Anybody know where to get one?