I have a ralliart intercooler. This particular piping kit has an extra metal coupler and reducer for the ralliart intercooler so that if you so choose, which I may do, you can upgrade to the evo intercooler and it works for both.
http://www.dcsports.com/ColdAir/MIP6011_Mitsubishi.html
I'll try to take some pictures later, and maybe someone will see something that I'm not seeing? I'm just wondering if because the piping has a larger diameter than the stock pipe if that's the reason, and if the Evo's piping is bigger? If that's the case, I'll try to find an Evo cooling plate and just call it good. If not then maybe something is wrong.