Don't know, John....I put one on a Sport Fly 40L a few years ago, with
an K&B .61 on it....with the pipe. After about a minute of flight the engine
was sagging a bit....so I brought her back in to readjust the carb. It was a
maiden flight on the plane, and a rebuilt motor.

When I got it in....the zip tie was already gone, and the pipe was only
holding on by the rubber joiner. I couldn't fly the plane any more that
day....and always remembered that plastic mount that failed....[X(]

Maybe it was defective....or I pulled it too tight....or whatever....but I
never tried another one....

Dave.