I fitted this last night, all of 1 minute to do. When out for a drive after. Not sure if the sound is much different but in 1st gear it felt sharper and when gunning it in 3rd gear from 5-7k RPM it seems crisper.
All in all a very mild difference and livened the throttle response slightly and higher revs seem to move faster, so worth it for me. I can’t wait to get the BMW performance exhaust on it in a few weeks now.
I haven't decided for sure yet on the Procede V3, but am moving toward these 2 minor tweaks to help breathing and leave it at that......but you know how it is, once you have the bug, it never stops nagging you.