I am looking for an original OS copy of the tune file for the 2003-05 S10 4.3 extreme truck or blazer. Just want to compare files against what I already have. Just curious if it had a more sporty tune file over the stock os? S10 truck or blazer. Did a few searches but came up empty handed. Lead me back to the 2004 S10 truck file at the tune repository at HPtuners.com. so if anyone has that original OS file from 2003-05 please share.
Thank You.