The Original Modshack Boost Machine
From the original design of over 10 years ago. Tested and proven in Numerous cars over hundreds of thousands of miles. The best hardware: Metalworks and Norgren Valves, Hosetechniques Silicone, all brass fittings, Custom easy mount bracket to mount in the cool location...
$150 + $10 shipping
More info on the web page here:
http://www.modshack.info/bm.htm
How it all works here:
http://forums.audiworld.com/tt/msgs/1191014.phtml