rds454ss
New member
- Joined
- Oct 29, 2026
- Messages
- 2
- Reaction score
- 0
- Location
- Buffalo, NY
- Current Ride
- 2026 Silverado Trail Boss
New owner and member here -
Has anyone had the ZR2 calibration installed on their TB with Active Exhaust? I just got my truck 4 days ago and think it sounds great in Sport Mode, but am curious as to how much better/louder it is with the $395 ZR2 calibration. Especially wonder what startup is like. I worked for GM in Texas and thought the Escalade V's startup sounded so cool. I know that it has the supercharged 6.2 etc., but wonder how the already great startup sound compares to the V's, with the ZR2 calibration installed.
Also, can you go back to the old calibration if it is a little too nasty to the neighbors in the am? Lol.
Has anyone had the ZR2 calibration installed on their TB with Active Exhaust? I just got my truck 4 days ago and think it sounds great in Sport Mode, but am curious as to how much better/louder it is with the $395 ZR2 calibration. Especially wonder what startup is like. I worked for GM in Texas and thought the Escalade V's startup sounded so cool. I know that it has the supercharged 6.2 etc., but wonder how the already great startup sound compares to the V's, with the ZR2 calibration installed.
Also, can you go back to the old calibration if it is a little too nasty to the neighbors in the am? Lol.
