Does K67 need all O2 sensors?

[Ajj]

There was a comment that the K67 needs the O2 sensors to work.
Well, as I thought, the answer is no.
So for you guys that are getting fed up with O2 errors you can delete them.

 

[Ajj]

@cropsprayer
See above.

 

[alex]

Don't actually understand why you wouldn't want them.

 

[Ajj]

For me, because I'm planning on using my Gen3 Arrow system, which has provision for only 1 sensor.
For others, because they are getting fed up with O2 related issues.
Either way, the main thing to take from this is that the K67 does not need O2 sensors.

 

[cropsprayer]

So I’ve spoken to Phil Crowe and another tuner in the Midlands both who say you absolutely have to have the front 2 but you can do away with the rears. Have you actually got a working bike that is somehow flashed to do away with all 4?

 

[Ajj]

The vid I posted has all 4 O2 sensors switched off. Map was written by the guy I use and this was supplied to one of his overseas customers.

If this is what you want, I can PM you his contact details.

 

[alex]

But the front two are helping to trim the fueling maps which are affected by altitude and air temp.
For those that have had failures, Alpha sell improved O2 sensors.

 

[pauly]

If the cats have been removed the 2 rear lambda sensors probably aren't necessary.

 

[Ajj]

But the front two are helping to trim the fueling maps which are affected by altitude and air temp.
For those that have had failures, Alpha sell improved O2 sensors.

Yes they do but it does not mean they are essential.
My Gen3 had both it's O2 sensors deleted and ran strong.

 

[alex]

Can do isn't the same as should do.

 

[Ajj]

It's a solution that will work fine.

 

[Ajj]

Well I tried to fit my K46 exhaust system to the K67 and unfortunately it doesn't fit. So I have ordered the Ti Akrapovic copy from Aliexpress. £270 including shipping. They also agreed to ship at lower value which was welcomed. The interesting thing is that the O2 sensors are located further back on the pipe, compared to oem, which might prevent the O2 failures.
I also looked at Black Widow exhausts and their down pipes look like a copy of the Arrow system. The only negatives is that they don't do Ti and the front O2 sensors are more forward than the oem system so therefore O2 failures may be more regular.