does anyone know if the exhaust side of the stock cat on the 22re is greater than the stock exhaust diameter (the flange acting as a reducer to the stock pipe diameter)? my 2.25 is welded directly to that old flange, and i'm thinking i may still have a bottleneck at that point. if so i'll cut the 2.25 at that spot, replace that flange with a larger one, and reweld.
many thanks.

 

i think mine is 2.25 on the cat

 

thanks.
unless someone with a FSM chimes in, looks like i'll pull it.