duramax exhaust brake
What was the model year of the first duramax exhaust brake in the pickups? chevman
Forum Discussion
bob213 wrote:
Pretty sure that you can add one with a custom tune to any year that doesn't have one(post waste gate models).EFI Live
not really via a tune. a tune can improve the factory grade brake by having the turbo vanes move more to give more backpressure. The Duramax exhaust brake uses the turbo vanes AND a variable gate on the exhaust.
Substantially more braking than just the turbo vane adjust.
