I finished installing the Magnaflow MagnaPack Cat-back system on the GreyGT yesterday! What a nice system, Looks great and sounds great!!! It was about time for the flowmaster to go anyway. Once I removed the old flowmasters and looked at the inside of them. I noticed all the baffles in the mufflers were all rusted out. They had been on the car for almost 4 years! Here's a couple of pics of the new system: