Audi A8 S8 Stage 1 Remap
On Audi A8 S8 naturally aspirated engines a Stage 1 remap refines the ignition timing, fuelling and throttle response maps. Without a turbo the power gain is smaller than on turbocharged engines; the difference is felt mostly in throttle response and the mid-range. No hardware is changed and the original software is backed up.
It depends on the generation and the stock output. S8 engines with 360–450 bhp reach 380–475 bhp with a Stage 1 remap; the largest gain is +25 bhp (D3 S8 5.2 FSI 450hp). Pick your version in the table below.
Audi A8 S8: Stage 1 figures by generation and year
Year / chassis: D3 - 2003 - 2010
| Engine | Power | Torque | Gain |
|---|---|---|---|
| Audi A8 S8 5.2 FSI 450hp | 450 → 475 bhp | 540 → 565 Nm | +25 bhp |
Year / chassis: D2 - 1999 - 2003
| Engine | Power | Torque | Gain |
|---|---|---|---|
| Audi A8 S8 4.2 V8 360hp | 360 → 380 bhp | 430 → 455 Nm | +20 bhp |
Where can this be done near you?
GP Power ECU applies the software at its workshop in Hukou, Hsinchu, using EcuPrime-developed files; workshops can also order the file directly.
About the high-performance large-displacement petrol engine (V8, V10, V12, W12, AMG, RS)
This group covers the large-displacement, mostly twin-turbo or supercharged petrol engines of Mercedes-AMG, Audi RS/S, Bentley, Porsche, Maserati, McLaren and similar brands. They make high power from the factory and are managed with tight temperature, knock and torque limits.
How a Stage 1 remap works on the Audi A8 S8
A Stage 1 remap looks at torque request, boost pressure, ignition and gearbox torque limits together. Gains are clear on twin-turbo engines; on large naturally aspirated engines the effect of software is more limited. Cooling and gearbox limits are kept.
Pre-remap checklist
- Spark plugs, coils and fuel quality (high octane recommended).
- Cooling system and intercooler efficiency.
- Gearbox torque capacity and oil condition.
- Fault memory and any previous software or hardware changes.
On these engines the result depends heavily on hardware and fuel; figures are confirmed by measurement.
This section is based on GP Power ECU workshop experience; the power and torque figures come from the catalogue measurement above.