[CraigH]

The dual valves were not provided by ACE. The International dealer supplied the valves, air line, etc as needed. They also fabricated the necessary brackets for mounting, etc. Nothing real high-tech and I was told the valves are the same ones they use on heavy trucks.

I was a little surprised ACE shipped with a single valve setup after reading other recent comments.

I sure can't complain about the ride though!

PS: While it was in they also replaced the fan clutch and applied another new update. It addressed several things but I am told one was to improve the life of the injectors by flushing them after shut down.