Hello!

I own these two engines and use them for two airplanes, a Piper cub and a Piper Cherokee.

For some reasons I decided to switch between the engines and put each one on a different airplane but a problem came up, the ASP's muffler is too long and doesn't fit in the new airplane.A muffler extension won't do the work so I switched between the mufflers, the ASP goes now with the OS muffler and vise versa. The only problem I can see now is a difficulty for the ASP to hold low RPM.

I assume switching the mufflers might not have been the brightest idea so I wanted to ask if anyone has an opinion about it. Could I harm the engines this way?

Thanks.<br type="_moz" />