My turbo 03 cobra is in the process of receiving a new turbo, piping, fuel system and more. The radiator leaks bad. I can't clear much thicker than stock 1 3/8" before having turbo clearance issues. I bought a stock replacement at Oreilly's, but it's only 1" thick. Will being 3/8" thinner be a problem? I'm in a crunch because my only other option really is oem and I have to make a decision fast because it's in a friends shop and can't stay there too long. I appreciate any insight.