offroad x pipe

1996dohcsvt

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hey guys just got an bbk offroad x pipe used. That system delete's all four cats correct? do i need 4 mil's or just 2 for the rear 02? will it affect the way engine runs with all 4 deleated? thanks
 

SirBradford

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Mar 3, 2011
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I just put an o/r x on my 95 and currently have the smog pump dump just pouring on the ground while I am waiting for the idler pulley and have no problems.. But on my car the o2 sensors are right after the headers before all 4 cats..

If your have cats before the 02 sencors then you need MIL eliminators or it will cause jar fuel ratio problems but that should be all you need.. And it should be only $20-$40 on craigslist..
 

TDUB003

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May 10, 2008
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Do I still need MIL's if I have a tuner to tune out the cel light?
 

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