o2 extensions needed for exhaust install. WTB!

[Timnineside]

Anyone know a good source for the o2 extensions? I am installing a used Belanger setup and these are needed and didn't seem to come in the box. Belanger wants $180 but I could sweat I seen a thread somewhere listing Jegs or Summit having them. I've had no luck finding them though.

Thanks!

-Tim

[ViperTony]

Casper's Electronics sells a 24" O2 Sensor Extension harness. It's "almost" plug and play but doesn't require splicing of wires. This is the extension (about $27 from Jeg's), Casper's Part Number 109034. I used these on my GenII. I *believe* they work on GenIII's but best to check with Caspers.

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A slight modification is required in order for this extension to mate with your O2 engine wire harness, namely the adapter. Below, is a shot of the drivers' side O2 harness plug that connects to the O2 front sensor. This plug has a stub on it that will prevent it from mating with the extension harness. The stub needs to be shaved down or removed.
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[Timnineside]

Tony,

Thanks for the awesome reply! I am going to go with these! I will make sure on that Gen 4 fitment and get them on their way! This beats the hell out of spending $180. I also have the mopar ECU and I'm pretty sure they shut off anyways but would like it to be right just in case I do remove that ECU.

[ViperTony]

Another option would be to send your O2's to Tator and have him splice in an extension. I believe he does it on the O2 sensors side of the harness, best to check with him. He may actually have O2's spliced and extended in stock.

[Viktimize]

Gen3's will just go dormant in fresh air. On mine we just tied them to the frame somewhere when I did my cat delete. Works fine so far, not sure about Gen4's though?

[Timnineside]

Thanks for the help guys. After realizing my rear 02's were shut off due to performance ecu I made the decision to wrap and tie them up in the tranny tunnel as I don't need them anyways. Other things I was suggested to do:

Wrap header 02's in heat tape which I did. Also make sure wires were far from header
Plug rear exhaust 02. I did this using a 18mm 1.5 oil drain plug and put some red exhaust silicon on.

Waiting on valve covers to be painted and then I will fire her up!

Thanks again for the help.