where to look for mods for 07-newer Expy's?
 

My wife has had her truck for a lil over a year now, and it's finally time for me to start messing with it! lol You can see the vehicles I have below, and neither one of them are stock at all, with the Camaro in the 10's, and the TBSS in the 12's.

I'm looking to go a different route with my wife's truck though.....I wanna focus on getting her mpg's up. Things like a tune, e-fans, CAI, exhaust mods....albeit quiet ones, lol.....etc.

This past weekend I installed a drop-in K+N, and removed the air silencer that goes from the back of the airbox to the fenderwell, and saw a solid 1.2 mpg improvement on the highway. That right there tells me there are mpg's to be had in a full CAI. And the factory exhaust, how many freakin resonators and mufflers does this damn thing have.....seriously? lol There's gotta be a lil bit of power and mpg's to be found in removing some of those, and replacing with straight pipe and a freer flowing muffler. I figure the e-fans and the tune are where I'll see the biggest improvements. With just those 2 mods alone, my TBSS saw almost 3 mpg's more, and about 35 rwhp!

So, how bout it.......where can I start looking for some of these things? Any help is greatly appreciated. :)