Headers and mufflers
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Join Date: July 27, 2011
Location: Houston, TX
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Well, you would have to get a Shorty mid pipe, if you get an o/r h or x then yes, you will either have to get a tune or mils to get rid of it, depending on the year your car is. If you get a catted x or h then its a hit and miss, the cats may be so free flowing that it may trigger a cel. BUTTT, if your getting longtube headers you will need a tune anyways, so you can just turn off the rear O2 sensors with it. In short yes they will, but you need a tune anyways so problem solved.
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