I ordered and received two replacement pipes, and think that one is incorrect but trying to make sure.... I'm no expert on exhausts.
So, for my car (serial 6724268) I believe that I need the following:
Cyl 1-3: 18111175482
Cyl 4-6: 18111175486
But what I have been sent is:
Cyl 1-3: 18111175482 (correct)
Cyl 4-6: 18111175484 (possibly incorrect, certainly not what I ordered)
The incorrect (at least I think) part is the Imasaf brand, part no. 19.27.01.
My concern is that at the end that goes to the mid-silencer doesn't have a expanded end with a flange attached/included. Here's a few snaps:



I can't see how there would be a solid connection, even with an added flange surely the bolts would just pull the flanges together? Do I need to buy a conical spacer/gasket (like this: http://www.ferrita.com/nb/universelle-d ... ninger/bmw) and a new flange to slide over the pipe end (cyl 4-6) so that when tightened up the new flange would 'nip into' the conical spacer/gasket?
Sorry if this seems seriously basic.
Ta
Dave