RE: 2-STROKE /4-STROKE FOR 3-D FLYING???
I have both OS and Supertigre engines now. I like the Supertigre as they seem to be a decent engine for the price but I still favor OS as they just seem to be a better engine overall. The only thing about the Supertigre is that their mufflers are so huge... Is there a replacement mufller that works well and is smaller?