Original Power:
Jeep Grand Cherokee 2005 - 2011 6.1 Hemi V8 420hp
You can request for a Tuning Calibration for your Jeep Grand Cherokee 2005 - 2011 6.1 Hemi V8 420hp vehicle on our file service site. These Tuning Calibrations always made in real time suited to your needs and cars maximum ability. All our Tuning files are made with maximum precision and care to be efficient. In this particular case, we can increase the power of your engine from 420 HP to 440 HP, 569 Torque to 590 Torque within a Stage1 Calibration package.
Post Power:
440 hp
Power Difference
+20 HP
Original Torque:
569 nm
Post Torque:
590 nm
Torque Difference
+21 NM
Tuning Data Base
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