So I got my new Yoshi CF TRS today. I had ordered the non-CA exhaust from pipecity, but recieved the CA model. I called them to get it exchanged and they told me that Yoshi discontinued the non-CA models because the '06 and newer F4i have an O2 and if you have an older bike just use the plug on the O2 bung. Before I install it I just wanted to confirm this is true. The only difference between the CA model and non-CA model is the O2 bung right?? Thanks guys.

 

I don't know this for sure, but from what i've heard and seen about slip-ons, this is indeed the case.

 

thanks for the reply. It does indeed seem to be the case, I have heard the same thing from a couple other sources now.

 

yes all the newer models have the 02 bung, i have a 2006 non CA model and i needed the O2 bung...just plug it....and drive.