I just looked at my 2011 and it looks like I have one of those baffels on the rear of the left pipe but the right one goes in about a foot and a half then stop's.
Did they change them?

 

Is this what was done. With the pipes still mounted you just took a 1 3/4 hole saw and from the outside you drilled it and it broke free? The piece you have pictured is what came out?

 

I did, here's the endcaps that come out when you cut the baffles out:

I didn't care for the sound but had to try it just to set my mind at ease about it. They sounded like a car with the muffler missing....a Harley should sound better than that.

 

so do I just grind down the tack welds and pull the whole core out?

What about the cats I see people saying to remove the cats too

 

Yes, go to full sak racing's website and they link a video showing how to remove them.

I removed my cat and wouldn't think of leaving it in for the mods I am doing.

 

Do. You have a link to that?

 

http://www.fullsac.com/cvo-muffler-cores.html

 

I went with this company to remove the CAT and the baffles. I am running ther ceramic pipes. Talk about sounding better, running better and dang do they ever look good. I will have to find a good pic to show the black pipes against my two tone, apple green and black 2011 Limited. I changed out the complete system in just under two hours and I suck as a wrench.
http://www.americancustom.com/

Here in Kansas we get alot of 100 plus degree days during the summer. I can actually ride my bike and not burn my stinking leg this year. Last year it sucked....90 degree weather and a CAT means slow roasting Thighs on a biker and passanger.

 

I went there but didnt see a video on this topic. Only saw a video of there baffles with the cat removed.