I’m just in the process of installing the Berk metallic HFC’s on my G37S 6MT, which has turned out to be a little more challenging that initially perceived, in that everything is so tight and requiring a lot of muscle to break free! The area I am looking for input on are the after cat oxygen sensors one of which was so hard to remove that the threads “gauled-up” in the process, so now I am looking for a direct replacement. The one removed had the following numbers on it NTK 0ZA603-N5 and 7J11 above the main number. They are four wire type probes. Looking for input on replacements, which can be either OEM, or other manufacturers on the proviso they are better quality.
Thanks in anticipation of your input.
Regards,
GraemeD
(GDonald386@aol.com)