I am looking into setting up my first gaser but I am concerned about being able to get it quite enough to pass the IMAC rules. I am looking at a 40 to 50 cc gas engine. What muffler are you using and will it pass the sound test? I will be putting the engine in either the Hangar 9 80inch cap or the Greatplanes Wagstaff 300 Extra. I dont want to shell out all the $$$ just to find that I cant fly it in contests. Your help would be much appreciated.

Thanks