They have less than 13k miles. I tested these on a Dynojet for lean and rich conditions and they both pass and neither have out of spec latency going from rich to lean, I had no air flow at the testing site, no fan blowing. Reason for selling is because I installed brand new ones without testing these first.

I'm asking $140 shipped, they are 275 new. I will solder the wires back together and insulate them before I ship them. You can use them on any 04+ G35 through 2007 or hot wire them on a Dynojet that has wideband capabilities or AEM EUGO wideband gauge. I do not know what the Haltech or ProEFI or Utec uses if anyone is interested to use them with those but my guess is that they wont work with those.

Do not clean them if you buy them and install them. Do not let them touch concrete and do not contaminate them with anti seize. Do not touch the tips.

Video of testing.