jbaperformanceexhaustco is ready to upgrade the Challenger exhaust, and gain about 25hp and 30ft/lbs

This is all pre-public sale, in a development sort of thing, to work out an aftermarket support is my take on it.

http://www.jbaheaders.com/

More on this Challenger at http://www.speedfactorycars.com/gallery.html

For a lot more about JBA: http://choosingscars.blogspot.com/2009/02/open-house-tour-for-mustang-club-at-jba.html