BHP+18 hp (7%)
Standard
242 hp
Tuned
260 hp
Torque+22 Nm (7%)
Standard
328 Nm
Tuned
350 Nm
Suitability
Moderate (4/10)Gains Profile
Limited headroomHeadroom
LowHummer H3 3.7 242hp ECU Remapping
Considering an ECU remap for your Hummer H3 3.7 242hp? A Stage 1 remap can take this 2006 - 2010 petrol engine from 242 BHP to 260 BHP and from 328 Nm to 350 Nm of torque (naturally aspirated). This engine scores 4/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Hummer H3 can achieve.
How this engine compares
- 3rdof 3 Hummer H3 engines by power gain
- 13%of the 9,842 engines we hold gain data for see a smaller power increase
- 12%of engines with torque data see a smaller torque increase
Comparisons are calculated from our own recorded Stage 1 figures.
Assessment
The Hummer H3 3.7 242hp is a 3.7L naturally aspirated petrol engine producing 242 BHP and 328 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 260 BHP and 350 Nm — a gain of around 18 BHP (7%) and 22 Nm (7%).
This engine has limited remap suitability, though the available headroom is limited, so gains are modest compared to higher-output variants. The tuning headroom is classified as limited, based on the percentage gain available from the factory output.
Considerations: Naturally aspirated engine: gains are usually limited; results vary widely.
All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.
Considerations
!Naturally aspirated engine: gains are usually limited; results vary widely.
Other H3 2006 - 2010 Engines
| Engine | BHP | Gain | Torque | Gain |
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