Originally Posted by FortyBrandon
Dang. I got a 99 with 4.3 gears sct tuned short shifter shifter bbk subframe connectors x pipe exhaust cold air intake. Does that mean I'm pushing past 300rwhp?
Strap it on a dyno. I don't know how 4Vs react to those mods but you wont see that kind of whp gain with those mods. The only ones that affect horsepower are the tune, cold air intake and x pipe. Those mods on a GT don't do crap for power gains other than the tune.