I have an 08 King Ranch 6.4L Power Stroke. I get 12 MPG and was told you could make some emmission changes as well as a chip and could get as high as 19-20 MPG. I have 2 questions; 1) what type of modifications are the best to do 2) who in our are does them, I live in eastern Oklahoma but would be willing to drive to a good shop.

Thank you in advance for any help.

 

Go search in the 6.4L Forumn. Lots of great info as this is discussed regularly.

Also check out hsperformance.com & spartandiesel.com

Drive to Houston next Saturday and we'll help you install it.