My Dinan X6 50i is running great and still turning heads every time I take it out. Although it was eight long months, it was totally worth it considering it was all at no cost and I got to drive Steve's modified 330i in the meantime. It's too bad that no one else has had the opporutnity to experience the difference; the amazing increase in horsepower and torque with the elimination of the turbo lag, the aggresive sounding exhaust, the black cermaic tips, and the high performance red caliper Brembo brakes to top it off...truly nothing else like it! Hopefully they will continue with project since my car is only in stage 2; I can't imagine how much more amazing it will be with more horses and torque in Stage 3!
Here's my old post:
http://www.xbimmers.com/forums/showthread.php?t=302899