I would lean away from it. That flowmaster will get really old, driving with it resonating and constant drone in the cab. I have a full 2 1/4 setup now without a cat and a three chamber and I hate it. I am going to replace it with a $15 turbo from summit. Also, that 2 1/2 inch pipe will get you nothing but power in the upper rpm range and a nice ricer sound. The flow may not be louder than the glasspack, but the sound will be very different.
