Depends on your power too big a one that covers your whole bumper and your pushing 170 is over kill an ugly no need for such a large cooler .
This is the spec of mine ,
-Bar & Plate Intercooler, Size: 550mm x 140mm x 65mm
2.25" (57mm) Inlet & Outlet
Max Pressure: 45psi
BHP Capacity: 350bhp