I have a BME 50 with a J&A Pitts muffler and have a couple of questions:

1. One of the cooling fins for the engine sits against the muffler where the two pipes come out of the main muffler barrel. Should I take a dremel to the fin to eliminate any vibration troubles?

2. The muffler has a little bracket that is supposed to be bent and attached to something? What should I attach it to? Should I tap the motor mount or firewall?

Thanks in advance for your help!