Need to speed up my Dodge SRT 4?

Ok, I got the Mopar Cat delete kit, Mopar catback, mopar short shifter, Dual stage increase controller, mopar stage two pcm + the stage two fuel injectors, forge wastegate, mopar cai + bov, perrin catch can, irridium sparks & some good falken tires which have really great grip. My car does 12.7 1/4 mile with the stock turbo which is remaining. Other than another turbo, what else will improve the quickness? My tech man says a fuel pressure regulator will help. Anybody? & do not say Intercoolor, Forgot to talk about, just bought a big agp..

By the way, already tried 101 high octane fuel. Works really well. Forgot to talk about that my 1/4 mile was so low because of it. NO CHEVY'S. BOO.. Maybe a vette..

by the way, who said chevy's go faster. Are you nuts?? vette z06 offcourse but Chevy?? come on dude. Not the Cobalt can keep up. By the way, mines not the new srt 4, The NEON

MPX throttle body, skicks on the track, DAS MAP clamp. But you're just at the end of the line without going to a bigger turbo, intercooler, fuel upgrades, etc.

a real easy way to get more power, run 100 octane or better.

Buy a CHEVROLET.They go lots faster for lots less money. Not only are chevys faster but their parts are interchangeable I have a 434 roller small block 1/4 mile at high 8s and street legal.Dyno over 900 hp. I did everything but machine work myself.I most likely have less in my car than you have in parts and labor for your upgrades.This car is driven daily.

well a bigger turbo is really the way to go but you may also replace or change the injector pump so it pumps more fuel