Re: Very pleased with 7.3 mileage, thanks PHP
I think my manual trans helps on those straight highway runs. But, the 80DD gives me great highway mileage. Plus the power is smooth and the motor is only a touch louder than stock. It is barely even noticeable. For someone who is not looking for something wild, but a nice punch with good economy, it is tough to beat.
2002 f-350 PSD, 4x4, cc short bed, 6spd, ccv mod, airdog, AIS filter, isspro ev and scangauges, detroit TT, ITP boost annihalator, ITP RR, bellowed up-pipes, ats housing, turbomaster, 3.5 dp magnaflow, very happy with ultra smooth and linear PHP 50t, 80DD and "whisper" tunes.