LS6 intake or BMR T-Arm
I run a Spohn with all the bells and whistles. But do your own research on what brand you want.
I, for instance, get one mod for the HP gain then my next mod is for traction, then HP, then traction, and so on. This works well if you are on a limited budget such as I am. Good Luck. Oh and BTW, you can't go wrong with Sphon.

