3800Pro Forums banner
gtp supercharger
1-1 of 1 Results
  1. Gallery
    hey 3800pro fans my name is Chris and I'm new to the 3800 series engines, I have a 4dr 99 Grand Prix GTP and I wanted to upgrade a little but keep it a family car that has balls, I seen a zzp performance kit stage 1 one that I want to get but I need help on making my whine louder and my car just...
1-1 of 1 Results