I've heard that with SLP headers and other headers you should use and different 02 sensor from the factory version.

Is this true? I have SLP Tri-Y's, which 02 sensor should I use? Who makes it? What is the part #?

Thanks! I ask because it just seems like my car uses ALLOT more gas since I installed my headers...

 

I'm using a stock O2 sensor with my SLP headers with no problems. My milage is in the 21-25 MPG range. I did burn a custom chip after the install, though.