yes it is in there. i read the whole thing a couple times now looking for the holy grail, hp for nothing. I found very little and have tried what I could.

resonator on exhaust, midpipe on intake, k&n instead of paper, removed the engine cover, cleaned throttle body, cleaned upper intake manifold repeatedly, gave it a little buffing while i was in there, etc, little stuff. synthetic in the rear end. anywhere I could find an angle. these are the things everyone should do before they spend money on the mods.

Better Life thru Chemistry
Black on Black 03.5 Sedan 6MT - Goodyear F1 GS-D3's 225/55/17, Custom Intake Tube, '03 "Z" Suspension, Magnaflow resonator, 6 Wire 4 Guage Grounding Kit