E36 325i Exhaust Lip Missing???

[e30dream]

From what I understand, the exhaust from my M50 should have (this is post-cat pipes, connecting to muffler pipes) two metal exhaust flange gasket rings to seal off the system... However it appears that one of the lip/rims is not there.

here is a picture (not mine.. but same issue)
Bimmerforums - The Ultimate BMW Forum

I purchased two rings from the stealer and the diameter is not big enough to fit over the pipe... did I pick up the wrong one? I used the PN from realoem.com


Thanks.

[e30dream]

ah... ok picked up the RIGHT one from a different BMW dealer today... apparently they make one slightly bigger in diameter and thicker as well.