AtlantaTrailBoss21
New member
- Joined
- Sep 15, 2025
- Messages
- 6
- Media
- 3
- Reaction score
- 11
- Location
- Atlanta GA
- Current Ride
- 2021 Chevy Silverado Z71 TrailBoss
Hello everyone. I just purchased a 2021 TrailBoss with the 6.2. I bought the truck from a dealership in MI and I'm in ATL so I never heard the truck prior to receiving it.
I was assuming one of my first mods would be a new exhaust setup. I was thinking of trying the muffler delete with the flapper delete as well.
Upon cranking up the truck, I was pleasantly surprised with what I thought was the stock sound, but after inspection it looks like my exhaust is not stock. The muffler is clamped on and there is no DFM flapper.
Do I have the GM performance exhaust? There is nothing in the VIN check about it and it's not in the window sticker. The muffler has no branding on it.
Image and sound clip for reference.
I was assuming one of my first mods would be a new exhaust setup. I was thinking of trying the muffler delete with the flapper delete as well.
Upon cranking up the truck, I was pleasantly surprised with what I thought was the stock sound, but after inspection it looks like my exhaust is not stock. The muffler is clamped on and there is no DFM flapper.
Do I have the GM performance exhaust? There is nothing in the VIN check about it and it's not in the window sticker. The muffler has no branding on it.
Image and sound clip for reference.