I remember from my youth of flipping through JC Whitney catalogs seeing exhaust bypass gate valves. They were cable actuated and you could divert an exhaust pipe to another pipe, bypassing whatever is downstream of the original configuration. Has anyone ever put a pair of these on a first gen 3.3, and ran an extra set of exhaust pipes to the rear? I know, not street legal, and likely will cause inspection woes with the "wrong" inspector, but I've considered it anyway. Anyone have this type of mod? How does it sound? Any discernable improvement in performance with the reduced restriction? I don't expect the car to become a drag racer, but I'd like any little extra bump I can get.