actaully it would not be much work at all if you if you've seen the piping on the greddy kit the piping from the turbo meet up on the passanger side, all you would have to do is join the pipes into one so you can connect into the intercooler, I couldnt see it being more than $100 to do, if that. also I would agree that your just better off going with the PE I think it a better kit, also something you should look into if you decide to go with the greddy kit with PE intercooler is if you decided to raise the boost in the future to 15+psi how well the intercooler would work with those turbos, I dont think it would be a problem cooling the air but i would make sure.

 

Or you could just wait for APS which keeps the bumper , has an awsome FMIC, bigger BBT (with water cooling) and a "real" fuel system.