But the Cossie one is a squeeze, of that there is no doubt. Unfortunately fitment does have to be considered, or we would all have truck intercoolers fitted.

Why not fit an RS500 one and be done with it?

That's always been my point with the GRS one, OK, some of you believe that there are issue's with it. However, it does fit.

Also, it does seem to be cooling 30psi OK and I have no real issue's with boost drop. I expect a certain amount, but that's part of the joys of owning a 'small but powerful' car.