sup guys. Nox on my smog was a bit over. about 150ppm over the max. Everything else was fine. I have a ypipe and custom bpipe. thats all. I replaced my EGR less than a year ago. O2 sensors are good, knock sensor is less than 2 years old and ngk iridium plugs are less than a year old. Oh im in CA. dam C.A.R.B.!!!

Im wondering if that 6-10 dollar "garunteed to pass" smog additive stuff will work? Has anyone ever used it when they were borderline and passed? If so, which brand did you get? thanks a bunch. my registration is 15 day pass due already.