I don't think the 2006 has an O2 sensor outside of California. My 2005 doesn't. You can easily check by getting down on one knee and looking for a sensor threaded into your midpipe with a wire coming out. Impossible to mistake for anything else.

My Yosh RS3 shipped with a midpipe with a hole in it for the O2, but they also provide a plug and a gasket to close the hole if you do not have an O2 sensor. Easy as pie.

 

I have a 2006 and I have an O2 sensor. I live in CT and have no idea if my bike is a cali model.

 

Ok so I got the Yoshimura RS-3 Carbon. It makes the bike look a lot better. Better than the huge stock exhaust. It also sounds 100x better than stock.
Installation:
It was fairly simple **Cough cough**. If you have all the tools and spare parts.
First, I needed to take the right side fairing off. To my surprise, the previous owner stripped one of the bolts. Luckily, it was the top one and I could still work around the fairing.
Removing the stock exhaust was very easy.
I cleaned the exhaust like the instructions said.
Here comes the hard part.
After putting the new exhaust on without tightening all of the bolts I realized that the bolt Yoshimura sent me for the foot peg was too short. Easy fix, went to home depot and bought a longer bolt and another washer for spacing.
Then I notice that the exhaust was not fitting on the header flush. Then realized that the stock exhaust had a gasket that needed to be removed. (This was not in the instructions… my dad and I sat for almost 30 min trying to figure out how to fit it on…). So we removed it.
Then things started to fall into place…..
Not…
Next was the O2 sensor…. The port Yoshimura has is about an inch farther away than the stock port. Meaning I was about a half inch from reaching the port. (If it’s not one thing, it’s another). While trying to get more length out of it, I took it out of the frame and looked at it, then wired it back through the frame and somehow it grew about a half inch, just enough to reach. I figured it was because the wires twisted when I unscrewed the O2 sensor and they untwisted.
Now, I tightened all the bolts. DONE

Here are some videos of Before and After.

Sounds a lot better in person.
It also has snowed a foot or so here in Oklahoma (northern). So i haven't got to ride it around.


http://www.youtube.com/watch?v=DHRcE1dDePQ


http://www.youtube.com/watch?v=y5Uv8b1rjvs

 

sweet *** sweet

 

Looks and sounds great bud.

Congrats on the install!

 

Thanks.

I also wanna add that if it wasn't for patience I probably couldn't have done it, the O2 Sensor seemed to work after I sat and thought about it, not to sure why but it did.

 

I installed the same pipe (in stainless) on my 2005 and didn't have any bolt, gasket or fitment issues. Can't comment on the O2 as I don't have one.

 

the bolt was the one that is up at the passenger footpeg. It seemed to short. Either they sent me the wrong bolt or they didn't account for the two washers that were built into the footpeg. Everything fit fine once I slowed down and looked everything over.

 

ahh, gotcha. well nice looking bike.