Ya know....there are days when I seem to leave my brain in the shower.
Just ignore my original posting above.
Yes there are four O2 sensors....if I had looked a bit higher-up on each cat I would have seen the pre-cat O2 sensors....oh bother!!
What I saw was that each cat pipe has two sensor bung locations....I was seeing the lower one with a bolt in each one.
Oh bother!
Last edited by Lannyl81; 10-09-2021 at 04:44 PM.
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