First of all, you need a baffle removal tool. Mike Sr. made one for my brother and I to use. I am sure Mike will post on how to make one. I think the best way to remove the baffles is to take the slip-ons off the bike and drill straight down with someone holding on to the pipe. The downward pressure makes a huge difference. It took about 40 minutes to remove 4 baffles from a used set of pipes I bought (the first baffle was already removed). Leaving them on the bike took a lot longer. My brother stood on a chair and ran the drill and I held the pipe in place. The whole saw should last you for both pipes. Also, you may want to use some kind of lubricant, this should help the teeth of your saw. I removed all three and I love the sound! I didnt reject, but I did put some tbs needles in my carbs.