was research on diff braces...took a look under my car and found out my 2025 Supra MT premium (canada) has a small diff cover just like the North American final edition.
As an aside, my 26 AT has the normal diff cover. I specifically checked before buying it since people had been mentioning that some 26's had gotten the smaller finned part.
If it's not a Final Edition then all exhausts that fit the other years should also fit a 26 MT. The FE has a secondary brace in the back that limits space. The regular cars don't have that, so if you have a regular 26 MT it'll accept any catback, especially with the smaller finned cover as that has even more room.