Dave ... my pal 'killed' his YS140 off and I noticed that the muffler for the YS140 is the same as the YS110. Hence, I think both the YS140 and YS160 have the same dimensions. Does that mean the YS140 and the YS160 share the same size in terms of the header? If that is so then can the YS160 use the header and muffler from the YS140? Is this possible? If the size of the muffler is a little small for the YS160 then might it be usable if I take the baffle off? Thanks!

p.s. today I had to use 5% nitro on the YS110 ... man it really suckz!

The muffler on the 110 and 140 are different but you can use them anyway. The 160 needs more volume, but with the baffle out it will work OK.

Dave ... thanks! That will be cheaper than getting a header and box muffler from Central Hobbies.

OK, good luck!