alrighty yet another ? I talked to the guy at the local house of mufflers today about upgradin my exhaust. I have a FM 40 series now with all stock piping. I got a 99' 4.0 SOHC. The muffler on there now is a single inletsingle outlet. When i had it put on they said duals wouldn't fit with the spare tire. This new guy said he could make it fit. Now im contemplating weather r not to get a dual inlet dual outlet FM 40 series with chrome tips. About 400 bucks he said. or do u think i should stick with what i got?