thanks for the kind comments. i'll try to get some vids or sound clips when under load.
some pics as requested.
installation details can be seen at this link
they are all-bolt ons. no cutting hacking or welding needed. the CAI took around 2 hours, cos the mech needed to figure his way around the new e92m3, remove the original intake before installing this CAI. I was there throughout and didn't seem that difficult. The exhaust was even easier... bolt off, bolt on...
ps. sounds much better in real life especially under load at 6k plus revs...