I know there's a handfull of PNW 8 owners that either post or lurk around here. March 21 there's a Group Dyno in Kirkland. More info is on this thread. http://forums.bimmerforums.com/forum/showthread.php?t=1182454
People are bringing all types of cars so if you're thinking about modifying in the future or want to show off the ponys its good to have a "base run" or what your mods produce.