John, first of all pull the baffles out and you will see that if you have any miles at all on your bike, you likely have no baffle material in there anyway.
I bought a set of used slip on's and decided to replace the baffle material to make them new, because really, that is the only difference between new pipes and old if they have no scratches.
When I pulled the baffles out, two screws, real easy to do, all the material was matted up in about two inches at the back!
I called V & H and they sent me new baffle material for an outragous price of (I'm joking of course) $6.95 .ea
I wrapped the baffles in accordance with what the tech told me to do.
My 110 blew most of the insulation out after about 20 miles and melted the kevlar wrapping.
I ordered some new material again and this time put a hose clamp around the material at the front of the baffle to keep the velocity from pushing it to the back...no luck!
I would challange anyone who has V&H slip ons to take out the two screws and check your baffle material...
For those of you advising against taking out the baffles, you may find you don't much of baffle yourself.
I took the pipes off...they're for sale if anyone wants to buy them. The 110 velocity is way too much and they're really loud when all insulation is gone.
Just my two cents...