It looks like the MWC Kmember group purchase is gaining traction. If you are interested please send an email to: firstname.lastname@example.org
with "4th gen kmember goup purchase" in the subject line. Also let them know what configuration you are looking for.
Their kmember supports 5" downpipe on the passenger side and a 3.5" downpipe on the driver side. More information can be found here. http://midwestchassis.mysimplestore....ebird-trans-am
If you have any questions post up.