Hypertech Max Energy Programmer for 2001-05 Sierra/Silverado 6.6L TD.
Programmer extracts every bit of energy possible out of every molecule of fuel giving you more mpg at part throttle and more power at wide open throttle. All this and more... Only from Hypertech!
Features:
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- Maximum Horsepower & Torque
- Improved Fuel Economy
- Internet Updateable (USB included)
- 50-State Emissions Legal
- Easy Plug-And-Play Installation
- Power Tuning
- adj top speed limiter
- tire size
- DTC Trouble codes
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