There seems to be a lot of knowledge on this great site, so I will run a simple question by you all. I just purchased a 25' camper last summer to pull behind my 02' Suburban 1500 w/ 5.3 liter. In the 2 times I pulled the camper it seems I could use a little extra HP on small hills. My question is what aftermarket product would benefit most at the least cost? I thought about CAI and maybe trying to fabricate my own piping to save some, but not sure if it would work or not. Any ideas will be helpful. Thanks in advance.