Here to say a big hello to all owned my z for 4 yrs now as daily driver it's awesome first z was a 260 2+2 loved that car still have some nice pieces left in garage from that lots of help from Mike Feeny back in the day his technical knowledge was second to none anyways the forums I have visited helped a lot in getting z through emissions after buying new cats new lambda sensors no joy checked intake pipe took it off and low and behold rubber that fits throttle body had rolled on the bottom edge causing air to leak by couldn't believe it how the hell did I miss that straight through emissions back on the road with a very smooth running car many thanks to the forums