OEM exhaust diameter

[EPH320]

Can anyone tell what the OEM exhaust pipe diameter is on the 2022/23 Yukon Denali XL 6.2? I’ve got a 3” muffler/resonator coming in and want to know if that can be swapped out or if I’ll need to re-pipe from the cat back.

 

[jforb]

I wonder what the 6.2 has...my 2022 5.3 Tahoe has 2-3/4" pipe