Mine's working fine with any tune I install.
My dad bought a 07.5 6.7 brand new its only got 35 000 miles on it and has already had to have the dealership replace the turbo because the exhaust brake stuck shut and the truck wouldnt do over 5 miles and hour they are junk
No tuning issues but they do stick from carbon buildup. The new turbos have a cleaning port.
Download the TSB here
It's just like any exhaust brake, it's needs to be used.
It's just like any exhaust brake, it's needs to be used. I have 90k on mine and never had an issue with it yet.
70K here, and the dealer is doing a HG now, but the charger has been perfect.
Chris