I was looking for enough cash to cover to cover new MT 275/60 r15's installed (approx $425 in my hand).I get to see the "experts" on the other board compare this to the v4 with only their opinions & dreams and NO DATA.This intercooler was not in any of the test roundups because Mease probably was not buildind these (longer core) at the time.The experts refer to "rows are just rows".What about thermal mass and coefficient of thermal conductivity.What about radiant & transferred heat...? How about delta T & delta P? I'm the second owner of this intercooler.Both of us together have not put 500 miles on this piece.1 pass is included in the 500 miles where the maf screen was sucked into the turbo (TA62)at half track and the car still went 12.0's at 117 (no hook!).The pictures don't do it justice and were taken casually by my son to help me out.Keith sells these intercoolers for about $750.