Since adding extra weight to the front of my car via the blower and intercooler, the front sits a lot lower. I was wondering if there would be any benefit into running the gt500 pro kit. I currently have the regular pro kit. I would like a little lower in the rear without going to a sportline low and the gt500 kit seems to be a perfect median. I probably don't have enough weight on the front as a gt500 still but that would mean that the front would sit a little higher than their advertised would put me where im at now but with a lower rear spring. Also thinking that the spring rate of the gt500 springs would be a benefit because of the extra front weight. Any gt owners here using the gt500 springs? In summary...Any benefit and do you think I would see the advertised lowering rate?