2014 RAM 4500 6.4L

Bedlam wrote:
The 6.4 Hemi uses an EGR cooler like the diesels. I wonder if the new emission controls are choking it?

Don't forget the 6.4 Hemi has been detuned to 367 hp but still 430 torque for 4500/5500 HD operations.
Same with the Cummins which was detuned to 325/750 even with the Aisin.