Update:-
Swapped out standard midpipe on my m135i and now have Remus midpipe between pre-installed BCS hi flo cat DP and MPE.
Yes it's feasible as in it was a bolt-off; bolt-on with no trimming/cutting required.
Initial thoughts
In comfort < 1/2 throttle - same as before. Above that sounds "purer" and "cleaner" - anyone who has swapped from cast headers to tubular manifold should no what I mean.
No drone.
Sport / sport + - best way to describe the sound is more rorty and blends well with added drama from my CAI and associated plumbing upgrades ..Sounded epic before and this takes it up notch without being unruly.
2 weeks in:-
As with MPE, Remus midpipe is getting better with miles. I'm getting more "bark" in the lower to mid range and from inside the car the mid to upper range "howl" sounds clearer ie less fussy.
Went for a swift blast with a pal and took some footage - here's a taster...
https://m.facebook.com/video_redirec...ment&__tn__=FR
Favourite mode is comfort throttle, AT in manual and JB4 canflap open
BP