Our performance upgrade for the 2005-2010 Hummer H3 usually gives you an increase of 10-14 horsepower and improves your fuel efficiency by 1-3 miles per gallon (more if you've made other modifications to your vehicle). It also enhances your ability for smooth acceleration, towing, overall drivability, and makes your vehicle feel more energetic from a standstill. Our tuning works with all versions of H3, including SUVs with both five and eight cylinders, as well as Alpha Trucks. Please note that if you have an automatic transmission from 2008 or later, there is an additional transmission control module. If you're sending in your PCM, please include this module as well.
You will send us your computer, or we can provide you with one for extra.
Change transmission type (4L60e,4L80e, Manual or non-electric auto)
Delete VATS
Change Axle Ratio
Change Tire Size
Remove speed limiter
Remove torque management - Torque abuse modes are modified to eliminate bog at launch
Remove unused engine codes (Leave in notes what you need turned off)
Emissions Removal For "NOT FOR STREET" rear O2, Cat, EVAP, EGR.
Fueling modified for WOT (Wide Open Throttle) performance
Timing modified for WOT performance
Raised rev limiter
Raised shift points
Removes lag by changing downshift tables
Transmission line pressure increased
MAF calibration is year specific
PE engagement adjusted to reduce KR
Torque converter lockup tables modified to improve transmission life and eliminate converter lockup hunting
Correct VIN number
Enable E85 Flex Fuel
V8 Swap
Our performance upgrade for the 2005-2010 Hummer H3 usually gives you an increase of 10-14 horsepower and improves your fuel efficiency by 1-3 miles per gallon (more if you've made other modifications to your vehicle). It also enhances your ability for smooth acceleration, towing, overall drivability, and makes your vehicle feel more energetic from a standstill. Our tuning works with all versions of H3, including SUVs with both five and eight cylinders, as well as Alpha Trucks. Please note that if you have an automatic transmission from 2008 or later, there is an additional transmission control module. If you're sending in your PCM, please include this module as well.
You will send us your computer, or we can provide you with one for extra.
Change transmission type (4L60e,4L80e, Manual or non-electric auto)
Delete VATS
Change Axle Ratio
Change Tire Size
Remove speed limiter
Remove torque management - Torque abuse modes are modified to eliminate bog at launch
Remove unused engine codes (Leave in notes what you need turned off)
Emissions Removal For "NOT FOR STREET" rear O2, Cat, EVAP, EGR.
Fueling modified for WOT (Wide Open Throttle) performance
Timing modified for WOT performance
Raised rev limiter
Raised shift points
Removes lag by changing downshift tables
Transmission line pressure increased
MAF calibration is year specific
PE engagement adjusted to reduce KR
Torque converter lockup tables modified to improve transmission life and eliminate converter lockup hunting
Correct VIN number
Enable E85 Flex Fuel
V8 Swap
