i've had a few baffles fall off and never to be found, so I made my own baffle with some sheet metal, if you cut about a 4 inch circle out and draw a circle in the center the same size as the pipe and cut slits from the outside to the inside circle and make tabs, you can fold the tabs up and clamp it onto the pipe, I went a step further and fashioned a small tube that came out of the hole. I actually got more power out of the homemade baffle than the stock one due to the hole being bigger.
I added some high temp foil tape around the outside to seal it a little before I clamped it on.