Expected gains of +20 BHP and +23 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Chevrolet Trailblazer 5.3 V8 305hp? A Stage 1 remap can take this All petrol engine from 305 BHP to 325 BHP and from 447 Nm to 470 Nm of torque (naturally aspirated). This engine scores 3.5/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Chevrolet Trailblazer can achieve.
The Chevrolet Trailblazer 5.3 V8 305hp is a 5.3L naturally aspirated petrol engine producing 305 BHP and 447 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 325 BHP and 470 Nm — a gain of around 20 BHP (7%) and 23 Nm (5%).
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.. High tuned torque: check transmission torque capacity and service history.
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 |
|---|---|---|---|---|---|
| 2.5d 163hp | 163 → 195 | +32 | 380 → 445 | +65 |
| Good (7/10) |
| 2.8d 200hp | 200 → 230 | +30 | 500 → 575 | +75 | Good (7/10) |
| 3.6 V6 279hp | 279 → 295 | +16 | 350 → 370 | +20 | Moderate (4/10) |
| 4.2i 279hp | 279 → 300 | +21 | 373 → 395 | +22 | Moderate (4/10) |
| SS 6.0 V8 400hp | 400 → 420 | +20 | 542 → 565 | +23 | Limited (3/10) |
Get a personalised remap quote for your Chevrolet Trailblazer. 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.