skyteam v-raptor 250 upgrade

[space4dreamz]

Hi all,

I'm new to the forum and also new to skyteam. I have the bike for about a month (got it preowned, 2013, 4200 km) and I like it a lot.
Some changes have been made and some are going to be done. I'll do most of it myself and things I'm not sure/do-not-know, I'll leave for the mechanic:

Some paint job
remove side covers
cone air filter fitted
carb will be replaced with mikuni VM30-83 (not sure about the model though, this is for the mechanic..)
exhaust muffler slip-on

The muffler is where I need your help guys:
The outer diameter of the pipe where it gets into the muffler is 32mm. However, I cant find a muffler with 32mm inlet. Most of the mufflers I see are 38-51mm with a reducing sleeve to not less than 1.5" (about 35mm) which is steal larger than the pipe.

currently on the original muffler (which is a 38mm) there is a seal bushing that cannot be taken out without being destroyed.

Any idea?

Thanks