Ericsson.FFS >
http://www.partsbase.org/parts/bmw-16137163596/
16137163596 > Activated Charcoal Filter. left steering
Looks like the canister and all relative lines are the same in both models. The canister is repositioned on the 1M. Because of the angle, and non-flex material of the vent lines, you need to get new ones. That, or you can always hack away and extend them.
Prior to getting the Scavenge air line from Germany (16137845196 - Scavenge air line), I modded/extended it. Worked beautifully. I'm not a hack though, so I bought the original part. All vent lines are rather inexpensive, but to each his own...
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In terms of Eisenmann modifying their exhaust (throwing up a complete assumption BTW), I'd bet that it has nothing to do with the canister. If it's an emissions regulation type scenario, then they probably changed some of the properties inside of the exhaust -- but externally -- it would be the same size/shape and fit both the US & EU spec models.
The exhaust doesn't connect to the canister (has nothing to do with it). The canister is a fuel ventilation system...period.
Here is the exhaust directly from them...
https://eisenmannblog.files.wordpres.../img_74851.jpg
See the canister? Cheers my friend.