Bear with me everyone. I'm new to the forum and I'm very new to Twin Cam Harleys. I've only had Shovels. I have a 1999 FLHTC with the cam gear upgrade and the 510G cam upgrade. It also has the Screaming Eagle 95 CI kit. The previous owner had punched out the factory mufflers a little. I punched them out more and removed the crossover pipe and welded up the holes and now I'm getting a squeaking sound that sounds like it's coming from the exhaust pipes. On another section of this forum I found out that it might be the rubber muffler mounts. If it's not the mounts, what could it be?