FYI...for those slightly interested as to why I wanted to go down on this path.
This is the video that started the whole thing:
This owner has a similar setup as what I was aiming for:
- M4 (S55 motor)
- non resonated AA EL (mostly similar to the M2C AA EL, just slightly longer)
- Dinan M4 catback exhaust
- stock DPs
It seems a few F80/F82 owners have done it, but the Dinan catbacks are different between the M2C and M3/M4 platforms, thus wanted to forge the path.