How good is this N/A setup

I have been lurking around here for a little while, and I decided I had something that might be worth posting. I bought my Mineral Gray 05 GT last August and almost immediately I have been looking through these sites for some performance ideas. I came across this setup from a performance racing store and claims it is an 11 second package (albiet high 11s). I'd imagine that this package has 11 sec ET potential, but under great conditions and at least an above average driver, but would it run mid 12s consitantly?

I left out the site I found this from so I'm not advertising their buisness (though some of you probably know where it comes from), but I wanted to know what everyones opinion of the following set up is:

Diablosport Handheld Tuner w/ a Custom Tune
C & L Cold Air Intake Kit w/ Oversized Mass-Air Meter
Steeda Underdrive Pulleys
Motive Gear 4.30 Ring & Pinion Set
Motive Gear Ring & Pinion COMPLETE Install Kit
Metco Lower Control Arms
Metco Upper Control Arm
Metco ICM Brackets
Eibach 4pc. Lowering Spring Kit
Centerforce Dual Friction Clutch
Cyn-R-G Aluminum Segmented Flywheel
Bogart Aluminum 4 pc. Racing Wheel Set
Bassani "Off-Road" Aluminized X-Pipe
Bassani Aluminized Cat-Back System
Mickey Thompson 26 x 11.5 ET Street Slicks


What about any improvements/changes? Would 4.10 gears make that much of a difference from the 4.30?