What pitts do you have in your Ultimate? Or which would you recommend?
Please include prices if possible.
I used an AAP pitts muffler on my CG Ultimate. I mounted it to the Gator
soft mount (aluminum) so vibration was not a problem. Also, the AAP
muffler comes with the hardware for my YS-120 and a teflon connector
(never breaks). Price was about $50, but that was 4 years ago. Radio
South and Centra Hobbies both carry AAP products and may have the muffler
The downside to the muffler is that you have to cut a lot of the cowl
(side and bottom for a side mounted engine). If I had had to do it all
over again I would set up the Ultimate like my CG Extra: mount the engine
inverted on a Dave Brown soft mount. Use a Hatoi flex header and AAP
tuned pipe (also soft mounted). Very low vibration, very quiet, and a
clean cowl. Downside is a pipe mounted under the fuse. If you wanted to,
you could mount the pipe in the fuse, but that's a lot of work.
12. In-cowl muffler