‘22 KTM 250sxf silencer fit ‘22 350sxf?

I just looked at all the FMF parts for 2022 for slip on mufflers.

045626 PowerCore 4 HEX Slip-On Muffler  fits 250, 350, and 450

045627 Q4 Hex Slip-On Muffler   fits 250, 350, and 450

045628  Factory 4.1 RCT Slip-On Muffler   fits 350 and 450 (might fit 250 also, but not listed)

045629  Factory 4.1 RCT Slip-On Muffler (blue ano)  fits 350 and 450 (might fit 250 also, but not listed)

045633 Factory 4.1 RCT Slip-On Muffler  (blue ano)  listed for 250 only

Interesting. I was always under the impression the 250 and 350 were the same across the board but evidently not so with fmf? I know stock and Akropovic are definitely that way. 

From KTM parts look up.

2022 250 SXF:

2022 350 SXF:

Yes the muffler will work from 250 to 350. I know oem KTM and Yoshimura have the same part number

I bought a fmf powercore 4 that was advertised for 350/450, but fit fine on a 250 stock header, I also bought a megabomb header for a 250 later on and it fit that fine as well. From what I understand is the 250 header is shorter across the board. Supposedly gives better bottom end when used on a 350.

My 2023 MC350F (same generation as a 2022 KTM) came with the baffle in the stock muffler.

I bought a new take-off from a 2023 MC250F and installed it on my 350F.
It fits perfectly and is identical except for the part number and there's no baffle.  The core diameter is the same.
I looked at it as a cheap performance mod.
 

Did you notice any power difference? I am considering doing the same thing.   thanks

I never even started the bike before I swapped out the muffler and all the plastic.
It sounds good and with the mods I've done it runs at least as strong as my buddy's 2023 model.

He runs a Twisted Vortex and I run the XPR with the 2018 airboot, trimmed airbox lid, and that muffler.
There's more power there than I need in the 40+ class.