I have to say that the GRS absolutely WALKS OVER the Pro Alloy cooler for Charge Temps.

If anyone wants to make an issue of the flow thing, then I would be quite happy to carry out a back-to-back Rolling Road test using the 2 coolers and no other adjustments. All you need to do is all club together to pay for the dyno time and someone lend me a Pro Alloy cooler.

That would prove it and you would all have an answer helping you with which to buy. I know where my money would be (and I bet Tony would back me up on that).

As for making that power, 240bhp is not to be taken lightly. I would definately say a Stage 3 turbo is needed. I ran mine to 260bhp on Standard Rods, Machined Mahle's and a Stage 3 T3 without a 5th Injector. It also did 150+mph on that spec.