Considering an ECU remap for your Hummer H3 3.5 220hp? A Stage 1 remap can take this 2006 - 2010 petrol engine from 220 BHP to 240 BHP and from 305 Nm to 325 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.
The Hummer H3 3.5 220hp is a 3.5L naturally aspirated petrol engine producing 220 BHP and 305 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 240 BHP and 325 Nm — a gain of around 20 BHP (9%) and 20 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.
| Engine | BHP | Gain | Torque | Gain | Score |
|---|---|---|---|---|---|
| 3.7 242hp | 242 → 260 | +18 | 328 → 350 | +22 | Moderate (4/10) |
| 5.3 V8 300hp |
| 300 → 320 |
| +20 |
| 430 → 450 |
| +20 |
| Limited (3.5/10) |
Get a personalised remap quote for your Hummer H3. We'll connect you with a trusted professional in your area.
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 before proceeding.
