So do you have more drone from the muffler where the cats where?
With the muffler in the back the drone is bad, and can feel vibration from it in the seat, and he used the factory rubber mounting.
He left the pipe like he was supposed to, before when I posted it looked like it was new pipe all the way, but next morning I put it on ramps so I could get a closer look.
The 1138 that I got has 2 1/4 in / out that matches pipe.