I don't know put my TSP 1 3/4 headers went in great only had to remove oil filter Y pipe not so much
it is hitting the driver side floor pretty hard and appears to be an 1 1/2" long is cutting the I pipe a normal thing for these oh yea it is TSP ory

 

Yeah I had to cut my I pipe to get my TSP ORY to fit also.

 

Did you just get a stainless straight coupler

 

I assume yours is hitting on the brace under your drivers seat? I literally spent hours re-clocking mine until I finally got it to just barley clear hitting, it now has maybe 1/8" between the dr side portion of the Y and the floor brace, it will clear it is just is a tight fit. And if you search on this forum, this is a common issue with their ORY's.

 

If you did not replace the engine mounts, then that might also be contributing to it. My TSP y-pipe fit perfect with my PaceSetters and new mounts.

 

I bought a piece of stainless pipe and cut the I pipe and fitted them together with a stainless coupler. It wasn't the best fix but it worked for my car.

I had done the poly mounts when I did my headers, but they may have helped me some.