So my sis popped the motor in her '97 GTP, and we're in the middle of swapping in a good motor. I decided to just yank the whole exhaust out from under the car so I can inspect it for leaks, got to love FWD for having the exhaust run under everything so it's easy to pull. Anyway, I notice it's got a goofy U-bend deal for the rear O2 sensor, and behind that a glasspack looking thing that I assume acts as a resonator. I figure there's probably 4 or 5 hp sitting in there, so I want to chop it out and weld a straight piece of pipe in there instead. Obviously that kind of removes the space required to fit the O2 sensor back under the floorpan, and running that wire back there is a PITA anyways, so is there a way I can eliminate the rear O2? I've heard of guys putting resistors and such in to fool the computer into thinking it's reading what it wants to see, and since it still has the primary O2 upstream I can't see it causing any problems. Help?