S197 and NOS

This has probably been talked about before, if so, please steer me in the right direction. I am looking to NOS a 2008 GT, any one have suggestions, experience or input? Appreciated. Stock motor except for Steeda CAI and tune. Not looking to go crazy, I seen some Systems and it seems like up to 150HP punch is ok on stock motor. I know a supercharger is "always on" but limited on budget, instead of $5000 or so for supercharger, it looks like I can get a complete NOS for about $900.

I was looking at...

The ZEX Kit, one in particular that states safe and efficient on stock engine applications, some are dual stage, active fuel control, etc seem to be on the average up to 150HP. I agree, I would say the 75-100HP range would be a good kick in the pants. Any input on difference between wet and dry? Thanks.