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All who have it i want to know what you did with the second o2 sensor, if you extended and placed it after the car or put an o2 sim or you just drive with the check engine light on?

and was it hard to install and did you have any problems???

and what model did you install it on?

 
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i havent installed the hp but i did a dc header, random tech cat pipe and evo2 exhaust. it was an lx to ex conversion. and i had to extend the o2 wires to make it work. just be sure not to mix up the white wires when doing it. the second o2 should be after the cat