I installed this on my 1997 Subaru WRX STi (GC8 chassis) after the stock radiator started peeing out of the plastic end caps. It was a very easy install, along with replacing the old thermostat and hoses with new OEM models. Because the Mishimoto block is noticeably larger (about an inch thicker than the stock block), the tubing had to be cut to prevent kinking. Mishimoto brand was my first choice mainly because of quality and customer service. My machine has had no cooling issues since installation and I can look to the future with confidence thanks to their amazing lifetime warranty.