I have a 2006 M6 GTO. I have a coolant leak. Doesn't appear to be coming from any hose. Looks as if it is coming from the plastic coolant tank that is crimped onto the radiator. I will pressure test it before making any purchase. In the mean time I have been searching for a quality all aluminum radiator, and it looks like the Mishimoto is the only one that only costs and arm. Any one have luck with other brands? Just covering my bases in case I missed a good radiator that doesn't cost an arm and a leg.