Expected gains of +20 BHP and +21 Nm torque
Get Your Free Quote ↓Considering an ECU remap for your Dodge Challenger SRT 392 6.4 V8 485hp? A Stage 1 remap can take this 2008 -> petrol engine from 485 BHP to 505 BHP and from 644 Nm to 665 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 Dodge Challenger can achieve.
The Dodge Challenger SRT 392 6.4 V8 485hp is a 6.4L naturally aspirated petrol engine producing 485 BHP and 644 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 505 BHP and 665 Nm — a gain of around 20 BHP (4%) and 21 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 |
|---|---|---|---|---|---|
| 3.5 V6 250hp | 250 → 270 | +20 | 339 → 360 | +21 | Moderate (4/10) |
| 3.6 V6 305hp | 305 → 325 | +20 | 363 → 385 | +22 | Moderate (4/10) |
| R/T 5.7 V8 372hp | 372 → 390 | +18 | 540 → 560 | +20 | Limited (3/10) |
| SRT8 6.1 V8 425hp | 425 → 445 | +20 | 570 → 590 | +20 | Limited (3/10) |
| 6.4 HEMI V8 470hp | 470 → 500 | +30 | 640 → 700 | +60 | Limited (3.5/10) |
| Hellcat 6.2 V8 Supercharged 707hp | 707 → 740 | +33 | 880 → 918 | +38 | Moderate (4.5/10) |
| Hellcat Redeye 6.2 V8 Supercharged 797hp | 797 → 840 | +43 | 959 → 1010 | +51 | Moderate (5/10) |
Get a personalised remap quote for your Dodge Challenger. 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.