Exhaust crush gasket for axle-back swap 9AT muffler to 6MT?

[FlagonFly]

I have a 2025 Performance MT and got the muffler off a Nismo 9AT that should fit. The crush gasket I got from the Nissan parts store (20692-8H30A) doesn't quite line up with the holes, and I think I ordered the wrong one. But I'm having trouble navigating the Nissan parts store to confirm the right one. Can someone help confirm the exact crush gasket I need, and also confirm if the Nismo 9AT muffler fits the non-Nismo?

 

[FlagonFly]

We reused the factory gaskets for now, which appeared to be barely crushed except around the bolt holes. Not hearing any obvious hisses or leaks but haven't driven it very much yet.

The sound is definitely much louder and throaty than the huge 6MT muffler. I only got the 9AT muffler and not the midsection with the resonators, and I've seen a few folks talking about some minor drone that I haven't heard yet but I've only driven around the block so far, so will report back after more miles and smiles!

 

[Howdog70]

I also put my catback on and off three or four times with the original gaskets and didn't have problems.

 

[thesilverbullet]

i reused mine for an a/t muffler swap - they’re easy enough to replace down the road if you have problems..