E30 Zone

Hi. I needs some info please. I have a 1991 325i touring and the exhaust is blowing a bit. Are the 320i exhausts the same as 325i's and are saloons same as touring? Thanks

320 and 325 touring have exactly the same exhaust manifold and front section of the exhaust system, both for cars with a cat. and without. All part numbers are the same.
The rear section is different, but this is only the size of the tail pipes, which are smaller on a 320.

Thanks for the Info.