I have 3 BLUE 02 sensors for a 5.5 gen max. 2 go in the front headers and 1 for the rear headers. 2 of the sensors came off the 3.5 I bought for my 3.5 swap and 1 came from the local junkyard. The 2 from my motor have around 70k on them and I'm not sure about the other. They all should work. I'll take$40 for each of them. I'll take pics once I get home.

 

bump

 

Do you know which bank the rear one is for? I need one for bank 1 I believe. (I'll check later). Thanks.

 

Its the one in the rear exhaust manifold.

 

Bump! I now have 5 of these.

 

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