Technic is no longer on this board however
There are some big helix 82dsp threads here with
people using a variety of aftermarkets including the
Jehnerts.
The Bimmertech thread mentions them they have even
developed a canned tune for them.
Yeah you really do have OCD.
I went through this to some extent when I was looking
for an upgrade to.
http://www.e90post.com/forums/showth...ght=bimmertech
There are a bunch more threads like this if you search for Heliix 82dsp
, bimmertech or Jehnert.