has anyone done this:
open downpipe, but have your local muffler shop make you piping xtending from your downpipe out thru the back, with some fat flowmaster tips? and im sure noise would b an issue considering you are running n open dp.
if so, is there quicker spool up, performance gains, etc....
(or has anyone mixed in a cherry bomb)

*if there are spool up gains, i mite consider it, but not a cherry bomb, jus curious