Originally Posted by urBan_dK
The video you linked is the original OEM exhaust mod, not the ACM.
An intake filter will certainly liven up the sound in the cabin a bit.
Thanks for the feedback. I guess that means that the ACM mod will sound even letter. Clearly I'm going to have try to listen to the mods in-person to properly judge. And thanks for the intake filter suggestion - I will look into it.
Any other E93 owners who have done the ACM mod have an opinion of the sound of the video vs the sound of an ACM mod in the cabin with the windows up?