’03-07 6.0L POWER STROKE
MAX HORSEPOWER: 400-430 HP TUNING: SCT
Graced with a higher-pressure HEUI injection system and an overall more efficient package than the 7.3L, a 6.0L Power Stroke-equipped Super Duty can make 100 more horsepower with custom tuning. SCT software is the weapon of choice for most 6.0L calibrators, and we’ve seen everything from 400 to 430 hp achieved on reputable chassis dynos. Our own testing of custom 6.0L tuning yielded 415-420 hp on the rollers—right smack-dab in the middle of what most folks see. By comparison, off-the-shelf universal tunes typically lay down somewhere between 360 and 380 hp.