Hey clublexus!!, my car at theRepair shop right now , need new Catalytic Converter,warmer, now I'm thinking get new exhaust(not full exhaust)resonators and cat back mufflers I'm not changing , so I found OBXsports ss exhaust manifold , looks good to me , and I like the price 370$,,, Only i'm not sure if its street legal? And it saysUtilize Factory Sensors??? how is it work? What aboutcheck engine? and stuff like that ? Where stock o2 sensors will go?If i'll get that OBX..

It means use your stock O2 Sensors in the O2 Sensors slots on the headers. You can see them in that picture. You just transfer over your sensors. Should be street legal and you may need O2 spacers at most but they're cheap.

thx for reply LuxuryGS3. So is it safe? am I going to have check engine lights, and what about state inspection?. does anyone have this ebay/amazon OBX headers?