Question about O/R x-pipe

[mustang04]

i have a 04 gt and just installed flowmaster catback exhaust.
i also bought some O/R x-pipe but did not install them yet. i was told i wont pass inspection is there a way to go around that and also is it worth putting on the x pipe compared to stock
TY

 

[SVTCruz]

Any mid pipe meant for off road won't pass. O/R mid pipes have no cats.

 

[ULL_LOSE]

Any mid pipe meant for off road won't pass. O/R mid pipes have no cats.

this.

and hell yeah its worth putting on AFTER inspection.... really makes a mean growl

 

[02S281]

MIL eliminators???? I have had an O/R x on my cars and never failed inspections. They never look underneath the car.

 

[mustang04]

so the MIL eliminators work then? because i already have the part and might as well put them on u know what i mean haa if i can use those MIL to pass inspection

 

[TBapp3]

Yup he MILs should work perfect!

 

[mustang04]

instead of the MIL, could i use a *SCT Tuner?

 

[scotts99snake]

instead of the MIL, could i use a *SCT Tuner?

You sure can. You have to have the rear O2 sensors turned off in the tune.

 

[mustang04]

i had the guy mid like half the O/R mid pip on and left the cats but i was woundering how much of a difference in Sounds/Performance would it be if i took them off....

 

[lehrskee]

your best bet is to get the mil eliminators anyways because i turned my rear o2s off with off road h pipe and still getting codes for cats.

 

[SJUBlade]

MIL eliminators should work, pick a shop you are familiar with. If you want to be sure, go to autozone have them scan for codes, its free but they won't clear any you do have. If you're clear and they are sticky about visual checks you're good to go. Yes it is worth it, best exhaust piece I had on my 04 GT, really woke up my magnaflow catback.