stanglvr38

So im putting on an MAC o.r h pipe for the stock manifolds. My car is a 2004 so I heard that you have to hav 02 extenstions. Is this true? Also, if i get the MIL eliminators, would I still need the o2 extensions? Thanks. I will make the MIL's my self.

EthaJee_83

I also would like to hear from someone who knows. I'm installing a mac o/r H this weekend. I did purchase a pair of o2 extenions. Is that all that is needed?

EthaJee_83

I just noticed you have a 2003, my understanding is you will not need any o2 extensions. 2004 or if you have long tube headers then you would need them

masterofthepuppets99

you dont need o2 extensions unless you have long tube headers, but mil eliminators are needed for an offroad mid pipe. if you have a handheld tuner then you dont need mil eliminators

Blackvenom01

also mils dont last long at all they can last a week or a year i would leave them out and get a handheld tuner or chip to get it turned off....it doesnt hurt your car to have the check engine light on its only a emition thing