Anyone running an off road setup? Thinking of adding MAC long tubes and an off road pro chamber ( doesn't seem to be an option with cats ) and I'm wondering what kind of problems I can expect. How do I pass inspection for one thing?
2007 Roush 427R
#07-486 of 1,025
VMP 2.49 pulley, Overdrive Automotive tune, FRPP 3.73 gears, Roush short throw shifter, JBA Longtubes, Roush Extreme Exhaust, JBA H-pipe, Ford Racing Twin 62mm TB, Roush CAI, Brisk Silver Racing plugs, Dual JLT oil separators.