50mustanggod

I just got a 2004 GT it looks to have some sort of glasspack/resonator type muffler on it welded on the stock exhaust and it sounds nice. I was thinking for some more HP to go with the BBK O/R H-Pipe and was wondering if it will bolt up to the stock manifold and stock catbacks? Also I am gonna get BBK Mil Eliminators and was wondering if I need the extensions also or what? IDK how the MIL's work... Let me know thanks.

sprostang

Yes it will bolt right up. You will need extensions for the mils. The mils work but tend to go bad after a while. You would be better off getting a tuner and turning off the rear 02`s.

red2k1gt

You wont gain much rwhp by just replacing the mid-pipe...only about 5 rwhp gain if that. You will need MIL's turn off your rear O2 sensors, not extensions. Good luck with the exhaust!

rbstang

best way to make your car a sleeper long tubes, o/r h, stock catback...

meebix

Just curious.... Let say for instance you have MILs and they fail you, BUT you don't need a tuner, so there is no point in getting one JUST to turn of the rear o2's. Is there anyway a shop can go into your computer and tell it to shut off the rear o2's!?

Just wondering... Before I ask and seem like a retard, lol.

rbstang

i would say more then likely it depends on shops software...