Will a 1985's exhaust piping, not the header, fit a 1980? I can't seem to find the interchange list.

 

it will work but mounting bracket may not match the 85's stock mounts. I'm currently running a RB 12-a header to a stock 85 connecting pipe and RB muffler on my SA. this is just to get the SA running and it will be changed to a dual 2.25 at a later date.

 

That's fine. So the flange will still bolt?

 

Correct