Changed to latest tune 9r14 yesterday and drove 268 miles last night at 65-72 MPH (most of the time), averaged 20 MPG, with extreme tune on a 2003 6.0L F250, Calid VXAP1N6. EGT reached a max of 1200 when punched to 95, and boost was variable, once went to 40 psi on a small uphill grade, mostof the ...

2003 6.0L F250, Calid VXAP1N6 - Has not been to Ford in years.

Changed to latest tune 9r14 yesterday and drove 268 miles last night at 65-72 MPH (most of the time), averaged 20 MPG, with extreme tune on a 2003 6.0L F250, Calid VXAP1N6. EGT reached a max of 1200 when punched to 95, and boost was variable, once went to 40 psi on a small uphill grade, mostof the ...

Any reason the new crom will not work with my old CAL VXAP1N6 on my 2003 6.0L ? The best mileage and performance ever was with 7r84 that i cannot go back to. - Thanks