you can remove that part from your header, which is where the stock pipe bolts to on an F2/3. that part the muffler connects to is a midpipe, which just slips onto the header. easy to remove.

 

Isnt that just an aftermarket mid pipe? Just curious cause my bike has that on it with a Two Brothers exhaust.

 

****, I didn't look at the picture with both eyes open

Cant see the header with this picture, just the mid-pipe and slip-on!

Anyway, just pull those 2 pieces off and as has been already pointed out... Bolt on the stock one!

Ignore my PM I just sent you LOL

 

^^^ I was like ummm..... lol, thanks for clearing that up.