Bentley(epb091786) and I went to Screamin' Diesel to roll on the dyno toady and got some pretty decent numbers. My truck hit 535/1064 that's with what mods I have in my signature and only running 26psi and on #2 only. Bentley's truck was 482/1092 on #2 only. Bentley did an awesome job tuning and I have to say I am very impressed. Not close enough to those 580whp numbers put up this weekend but I can live with it for now.