crazysteve

GDZ is a 2.4 not a SS very big difference, XXL has a gt30 if I remember right....if you think 40-70hp (that is the amount I have seen) will be enought after you have maxed out the stock turbo then the big wheel stock turbo is the cheapest and easiest job...if not then it depends on how much you want to spend but I would expect 3-5K pretty easy for a turbo swap.

HHRSSouth

I think another misconception people have about the turbo wheel upgrade is it only adds a little bit of horse power. But what people aren't realizing is that you can make power all the way to 7400 rpms (if you had the supporting valve train), and for sure to 7000 rpms with the red line raised via tune. The stock turbo starts to run out of steam around 5-5.5k rpms. Best part of all the turbo looks stock for warranty work.

I plan on the turbo wheel upgrade at the end of June and I'm sure upgraded clutch shortly after Of course Dyno results will follow

JJ's BLACK SS

is this were you are changing the impeller to a larger one i have talked to some people about that

HHRSSouth

Yes, to the billet impeller.
I know some people were having problems with tuning bigger turbo upgrades with out having the GM stage upgraded sensors, because of the limit on the stock sensors.