Expected gains of +20 BHP and +18 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Jeep Grand Cherokee SRT8 6.4 Hemi V8 475hp? A Stage 1 remap can take this 2011 - 2020 petrol engine from 475 BHP to 495 BHP and from 637 Nm to 655 Nm of torque (naturally aspirated). This engine scores 3/10 for remap suitability. Get a free personalised quote from a trusted remap professional and find out exactly what your Jeep Grand Cherokee can achieve.
Comparisons are calculated from our own recorded Stage 1 figures.
The Jeep Grand Cherokee SRT8 6.4 Hemi V8 475hp is a 6.4L naturally aspirated petrol engine producing 475 BHP and 637 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 495 BHP and 655 Nm — a gain of around 20 BHP (4%) and 18 Nm (3%).
This engine has low 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 |
|---|
| 2.0 M-Jet 140hp | 140 → 185 | +45 | 350 → 400 | +50 | Excellent (8/10) |
| 2.0 M-Jet 180hp | 180 → 200 | +20 | 350 → 425 | +75 | Good (7/10) |
| 3.0 CRD 190hp | 190 → 280 | +90 | 440 → 610 | +170 | Excellent (8/10) |
| 3.0 CRD 241hp | 241 → 280 | +39 | 550 → 630 | +80 | Good (7/10) |
| 3.0 CRD 250hp | 250 → 285 | +35 | 570 → 630 | +60 | Good (6.5/10) |
| 3.6 V6 VVT 286hp | 286 → 300 | +14 | 347 → 370 | +23 | Moderate (4/10) |
| 5.7 Hemi V8 360hp | 360 → 380 | +20 | 529 → 550 | +21 | Limited (3/10) |
| Tackhawk 6.2 V8 Supercharged 707hp | 707 → 740 | +33 | 875 → 918 | +43 | Moderate (4.5/10) |
Get a personalised remap quote for your Jeep Grand Cherokee. 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.