http://www.roadraceengineering.com/2g16ginstallkit.htm

Scroll down the page to find the individual parts. You may be able to obtain them from someone here for a cheaper price as well.

I also found this page about a guy using a "home brew" kit from one of the board members, but the page was created way back in 2003, so I'm not sure if the board member still has the kits or not.

http://www.dsmtuners.com/forums/showthread.php?t=92558

Another resource for parts as well.

http://www.dsmparts.com/customer/home.php?cat=87