Are all intercoolers basically the same? I mean, you can find them any where from $100 for a generic brand to $300-500 for a name brand. Are you just paying for the name or are they actually better. And if they are, why? What features or qualities should I look for, such as type of metal(aluminum). With just a Procharger, am I really going to be able to tell the difference between a $100 and $400 FMIC? Anythings gotta be better than what came with it, right?