Need help.!!!!!!

I'm after a bit of help/advice. I've just bought an akrapovic can and link pipe for my 2008 blade. I have fitted it but when I went to fit the 02 sensor it was too big for the port. is there another size O2 sensor available or do you have to go the power commander way. I've capped it off and started it but put the management light came on. the guy I bought it from says he ran it with O2 sensor and no pc and it ran fine. That's why I'm wondering if there is a smaller thread 4 pin O2 sensor available. appreciate any advice. Thanks Dean.

 

I've ordered an O2 eliminator will the bike run fine with this fitted and no power commander?

 

I have just put an Akra on mine(12 plate) and thought the plug wasn't going to fit but was just snug,
I have blanked off the sensor and put on a servo delete and it runs ok but if honest would be better with a map

 

It will run ok, but for best / correct running it needs a power commander and custom map.

 

Thanks