2008-2010 6.4L Ford Power Stroke High Sulfur Calibrations

All options available below are in addition to the Mini Maxx Street Vehicle Specific options found Here

Click each option for details:


Power Levels
Tune Selection

This option allows you to pick from 3 tuning options.
1. Easy Tuning 2. Mild Tuning (Default) 3. Hot Damn Tuning
To change this selection you must repeat the install download process.

newtunethumb 2008 2010 6.4L Ford Power Stroke High Sulfur Calibrations
Available Power Levels

Hot Damn 300
  • 50 HP
  • Tow: 125 HP
  • Street: 225 HP
  • Performance: 300 HP
Mild (Default)
  • Stock HP
  • Tow: 80 HP
  • Street: 160 HP
  • Performance: 250 HP
Easy Tuning
  • Stock HP
  • Tow: 60 HP
  • Street: 120 HP
  • Performance: 175 HP
Power Levels can be adjusted on-the-fly at the touch of a button after Installing the Download to the vehicle. The current Power Level will be saved even if the Mini Maxx is unplugged.

Note: The Power Level ratings listed may not be exact for your particular vehicle. The listed ratings apply to the out-of-the-box tuning that H&S tuning devices are shipped with. Any custom downloads may result in different ratings.
MCC Custom Tuning
Any H&S tune can be custom modified using the Maxx Calibration Control software. More info on MCC HERE.


Emissions Selection
Most 2008-2010 6.4L Powerstrokes are equipped with an emissions system designed to run Ultra Low Sulfur Diesel (ULSD) Fuel. If you have removed or modified this emissions system (or plan to immediately after installing this device), proper tuning must be installed or the vehicle will not operate correctly. Select REMOVED at this option for a modified emissions system and high sulfur fuel use. Select PRESENT if your emissions system requires ULSD fuel.
Exhaust Emissions Equipment
When running ULSD tuning, it is required that all sensors located in the exhaust system stay in place and plugged in, otherwise you may experience a Check Engine Light (CEL) and even a loss of power (limp mode).

When running High Sulfur tuning, it is recommended that all sensors located in the factory exhaust system be unplugged from the electrical harnesses. These sensors can also be removed completely with the factory exhaust if desired. On the 6.4L Powerstroke, there are usually 3 EGT Sensors and 1 Pressure Sensor.

Note: The vehicle will not run with sensors removed unless High Sulfur tuning is installed.
EGR Emissions Equipment
When running High Sulfur tuning, it is not required to unplug or block-off the EGR system on your 6.4L Powerstroke to disable it. The EGR system is already disabled in the tuning and will not function under any conditions. If desired, the entire EGR system can be unplugged, blocked-off, or completely removed when running H&S High Sulfur tuning.

Transmission Tuning
Transmission Reset / Relearn
The 5R110 automatic transmission on the 2008 – 2010 6.4L Powerstroke has what is called Adaptive Memory and is constantly learning and adapting to different horsepower levels, temperatures, driving habits, etc. After completing the Install Download process on the 6.4L Powerstroke, the Transmission Adaptive Memory is automatically reset. We highly recommend performing a Transmission Relearn procedure after installing H&S tuning to help the transmission perform correctly with the added horsepower. The 5R110 automatic transmission will eventually learn over time on its own, but the relearn procedure gives a good baseline for the adaptive learning and helps to speed up the learning process. To perform the relearn procedure, please follow these instructions: When re-training the transmission, ALWAYS follow posted speed limits. Do NOT attempt runs in adverse weather conditions such as snow, ice, rain, wind, or any other conditions that may affect your vehicles traction or impair your visibility!
  1. After H&S tuning is installed, perform each of the following 0-80 MPH runs while in the HOT power level. During this relearn process, you may experience hesitation during shifts, hard shifts, or defuel patterns, all of which are normal:
  • 0-80 MPH @ 25% throttle position, then slow down and come to a complete stop.
  • 0-80 MPH @ 50% throttle position, then slow down and come to a complete stop.
  • 0-80 MPH @ 100% throttle position, then slow down and come to a complete stop.

The Transmission Relearn procedure is complete.

Note: On any vehicle using 3″ or larger lift blocks under the rear leaf pack, it is HIGHLY RECOMMENDED to install traction bars. With any added horsepower, failure to do so may result in harsh shifting and may cause premature transmission and/or driveline damage.

Shift Schedule

This option allows you to change the shift logic of your automatic transmission. There are 2 options. To change these options, you must repeat the install download process.

  1. Schedule 1. This option will lock the torque converter in 4th gear under normal driving, and keep it locked through 5th gear.
  2. Schedule 2. This option will not long the torque converter until 5th gear under normal driving.


Shift Point

This option will allow you to modify shift points for the 3-4 and 4-5 shifts. There are 3 options to choose from. To change these options, you must repeat the install download process.

  1. Low. This option will shift into high gear at the lowest possible road speed.
  2. Med. This option is the middle range of shift points
  3. High. This option will shift into high gears at the highest possible road speed.
Other Features
Low Boost Fueling
This adjustment allows you to limit the amount of fuel delivered based upon turbo boost levels. 0 will have the least smoke output, 5 will have the most. By skipping this feature, the tuning will default to level 2.