I have a brand new Sceadu 50 that came with this ugly small muffler used also for the Shuttle.

I am looking to get a better one, and it seems that either the Align for the 600N looks good and price is good, or the Curtis Y. muffler that is also in the price range.

Is there any other one I should consider, and which of the two do you recommend if those are fine. I am also looking for the one that makes the less noise possible if there is a difference because sometimes we fly close to a residential area.

Any suggestions would be appreciated. Thanks.