Thanks,
You guys confirmed what I thought. It will be very easy to get rid of the 2" restriction from the cat to the flange. I looked again tonight when I got home from work and there is at least 1" of 2.25 inch pipe coming out of the cat before it gets necked down to 2". I can weld the new 2.25 pipe and flange up this weekend. I might even fix the y pipe and do the Mystery Mod as well since I'm going to be under the car anyway.

Dave