I see what you're saying...
I remember a little while back in the Mitsubishi forum they did some testing between a name brand and an ebay... i don't know if they ever said what the ebay one was.... but the name brand one was this one...
https://secure.buschurracing.com/cat...14d1a7a9c7024c
Its only about half what some greddy ones cost.... but well over twice, and sometimes three times what the standard ebay one costs...
Maybe the better question is, what makes a good intercooler? How is one better than another?
I'm basically of the same opinion as ^^ But I also don't have a lot of experience with boost and such. I just know that depending on who you talk to depends on what intercooler is the best... and for what motor/car....