Below you will find modified eng files as an option for the engine included with the A&O Sub.
The files incorporate a change in the way the Independant brake (i.e. engine brake) applies/releases. It is now much, much faster acting. This helps it to feel much more prototypical when switching. To compliment the brake response, the MaxBrakeForce has been lowered as well.
1. Download the zip.
2. Unzip the contents.
3. Rename or otherwise back the originals.
4. Copy the corresponding engine file into the correct engine folder.