[azndrunk74]

Yes, sorry I should have stated I have an ess 625 kit.

To summarize-

July 3rd runs:
491.85whp on 91 octane, 4th gear
513.95 whp on 91 octane + 2 gallons e85, 4th gear

August 17th runs (addition of Bimmerworld resonated x-pipe, new O2s, new filter):
508.20 whp 342.73 tq 91 octane, 4th gear
500.93 whp 341.00 tq 91 octane, 4th gear (bad run?)
512.82 whp 343.32 tq 91 octane, 5th gear
514.62 whp 354.76 tq 91 octane, 5th gear (not pictured)

There are gains across nearly the entire RPM range, looks like roughly +15whp to 20whp from eyeballing it. My butt dyno did tell me it felt better after the x-pipe and the dyno confirmed it.

For reference, a FBO CLS63 (6.2L V8) did 440whp (forget TQ number, it was above 400) right before me.