We went to a different dyno for the Gran Prix we competed in. Part of it was the dyno competition. This is from a Dynapack Dyno here in SoCal so keep that in mind. Our DynoJet reads much lower. This was about 23.5psi IIRC. Mods were FSWerks 3" exhaust and catted DP, Cobb AP V3 with FSWerks programming, and Forge FMIC.