Hey guys, I bought a bazzaz with the auto mapper for my 2011 zx6r. I was going to do it today but I cant find the 02 sensor. I got a TBR S1R slip on for it last year and that eliminated the cat. So I guess I'm asking where is the sensor? Hope I'm just being blind and over looking it, but just in case I do have to weld it, where is a good placement? I was thinking I could put it at the stainless steel pipe right before the can (included with exhaust)? If not, is the pipe by the collector titanium? I was thinking with all the emission standards these days it would almost have to have the sensor. I don't remember taking it out when I installed the slip on.