champion 2 row rad/intercooler question

ive got a problem in the uk in that radiators or the cores are not made anymore for these cars,its going to be cheaper to get one from champion after the quote ive had to get one made,my question is with the stock rad in place im running 2.5" intercooler piping over the top of the rad,can anyone confirm this is still possible with the champion 2 row rad in place,without doing any cutting etc?,also is the champion rad as good as a standard unit?,thanks