ORIGINAL: goirish
Yes the original muffler had a nipple on it. Long gone in the shuffle. It does appear to have a small screw in the barrel. Not sure what it goes to if anything. Maybe I could use that opening
I will take a wild guess and say that a pressure nipple can be srewed in where that screw is.
One like this"
http://www2.towerhobbies.com/cgi-bin...&I=LXFX78&P=ML