mufflers for around the house use?

I use these to attach my exhaust when street driving, and for quick removal at the track.

http://www.summitracing.com/parts/SUM-693300/

My exhaust exits just before my rear tires. With these connectors I can take off my exhaust pipes in less than 5 minutes, and re-install the exhaust in less than 10 minutes.
Bingo! This is what I use also(BandClamps).I can slide my exhaust off in 10 mins and then slide my extensions in.:burnout: