2015 cummins 550 2050 torque

- Keep the rpms low and let it work
- Delete it

 

Ratio won't really make much of a difference with 148000lbs (67000kgs) once your outta top gear on a pull .. The only real difference may be ones in 5th gear ones in 6th going the same speed .. Let truck break in and he will probably outpull them ... A new tight truck in negative 25 to negative 40 canadian weather will be a dog until parts loosen up

 

Just because it's 550 doesn't mean it's making 550. It just depends on how the computer is programmed.

Also, it may be say programmed 400 on the pedal and 550 on cruise or something like that. Try climbing the hill on cruise and see if that helps.

 

Heard of it, never seen it. Don't know much about it. Every truck I've seen roll in my shop that's been "tuned" had a Diesel Freak on it.

 

I don't see them available for 2015 cummins.