dhatch, a member cut the arrestor off and later found that the imbalance along with vibration resulted in the muffler to crack. Don't just cut the pipe that the wire mesh is attached to, instead just remove the wire mesh if you see the need. If you do remove the mesh, stay off of government land. There would be a unlikely chance that a spark could be expelled out the exhaust resulting in a fire. Of course, that could happen anywhere, it's just that the government would fine you for not having an arrestor installed. By the way, I didn't cut mine off, just clean a couple times a year.