Quote:
Originally Posted by UltimateBMW
It is purely a software package. I e-mailed the company to verify that they hadn't changed the displacement from 4.0 to 4.2 (error on their website). He assured me it was solely a software modification. Check the forum post to see the e-mail verbatim.
http://www.m3post.com/forums/showthread.php?t=99384 |
Says on Noelle's site that it requires a new exhaust with the cats removed.