Uprev is the company you need to contact. They can "Tune" our engines, either by mailing in your ECU to them for 300-500, or getting the Osisris software and cable from them and doing the reflash of your ECU with a file they provide. Cost is about 710, but includes updates, and Cipher software to monitor performance and clear codes, etc. Factory limit is about 115, can be reset to 300 if you like. Top speed achieved is about 140+, but i'd never want to do that!
Search the site for UpRev Tune and go to
www.uprev.com. my Mods are similiar to yours. Smart man!

__________________
Majestic Blue 2006 XE CC 2WD Big Tow
AEM BruteForce CAI; PowerAid TBS; MagnaFlow 3" x 24" Muffler; UpRev 93 Tuned; Detroit TrueTrac
Stillen Front and Rear AntiSway Bars, Diff. Cover, Front Rotors & Pads
PRG 2-1/2" and 1" MiniLift, Street Traction Bars
DYNO: 308 RWHP & 380 RWTQ
~CRANK: 360 HP & 450 TQ
Born June 12, 2006
Adopted June 27, 2006
14.792 secs at 91.04 mph prior to TrueTrac
Member of the Charm City TitansIRC VK56 Member "Special Operations"