I'm pretty sure these aren't on the Massachusetts Approved Tail Pipe Roster*

Minigun pipes for your hog.

Not sure I want one, but cooler than heck.  They have a Ma Deuce model, too.  And a B-52 engine one.  Win.

* Found here.  In Georgia, the only reason a cop would pull you over is so he could get a closer look at the coolness.