Mike Lazar, also known as the Lazarsmith or XLR8TR on DTR did a test on the popular ones and found a less than 5% difference in the cooling from a stocker. He is a very smart dude that does a lot of testing and engineering of existing and one off parts. I was gonna get an after market intercooler and he talked me out it. Get a hold of him on DTR or call him. He is in Mckinney, Texas and can be found on google with lazArsmith, dodge, sssss, sectorshaft, as key words. Might just save you some monkey for a diff. toy