Audi A8 (D4) 2014> 4.2 TDI 379bhp remap figures
Stock, this 2014> Audi A8 diesel (4.1L) produces 379bhp and 850Nm. Our expected figures for a Stage 1 remap are 445bhp and 981Nm, an expected gain of up to 66bhp and 131Nm.
Choose your map
Stage 1 remap figures
A Stage 1 remap is a software-only change to the ECU on an otherwise standard car. It needs no extra parts, which makes it the usual starting point.
| Stock | Vanguard expected | Expected gain, up to | |
|---|---|---|---|
| Power | 379 bhp | 445 bhp | +66 bhp |
| Torque | 850 Nm | 981 Nm | +131 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 379 bhp | 850 Nm | |
| Stage 1Maximum software-only performance | 445 bhp | 981 Nm | +66 bhp +131 Nm |
| Stage 1 EcoPerformance with economy in mind | 429 bhp | 971 Nm | +50 bhp +121 Nm |
| Eco mapEconomy first | 423 bhp | 964 Nm | +44 bhp +114 Nm |
Who is the Stage 1 map for?
- Drivers who want stronger pulling power for overtaking, hills and towing, with no parts to fit.
- Daily and motorway drivers who want the engine to feel less strained at cruising speed.
- Anyone who wants the biggest software-only change we list for this engine.
What this means for your A8
Diesel remaps work mainly on boost pressure, fuel delivery and torque limiters, which is why the Nm gain is usually the figure you feel in everyday driving, particularly when overtaking or towing.
The ECU recorded for this variant is a Bosch EDC17CP44. We read the ECU on your car and compare it with the software listed here before any work starts, so you know what to expect before you commit.
We remap at our Belgrave Gate workshop in Leicester, or at your home or work within 30 miles, and every job starts with a diagnostic check.
Please note: these are expected figures, not guarantees. Real results vary with the condition of the vehicle, the ECU software version, fuel quality and the hardware fitted. Some options - including Stage 2 and anything that needs extra hardware - are for off-road or competition use only. We check every vehicle first and confirm what is achievable before any work starts.
Figures reviewed 22 October 2026.
Stage 1 questions
How much power does the Stage 1 map give the Audi A8 4.2 TDI 379bhp?
We expect 445bhp and 981Nm against 379bhp and 850Nm as standard: up to +66bhp and +131Nm. These are expected figures, and we confirm what is achievable on your own car after a diagnostic check.
Does a Stage 1 remap need any extra parts on the Audi A8 4.2 TDI 379bhp?
No. Stage 1 is a software-only change to the ECU on an otherwise standard car.
Is there a gentler map than Stage 1 for this engine?
Yes, two. Stage 1 Eco is performance with economy in mind: 429bhp and 971Nm expected. The Eco map is economy first: 423bhp and 964Nm. Both still sit above the standard 379bhp and 850Nm.
Do I need to tell my insurer about a remap?
Yes. A remap is a modification, so you should declare it to your insurer.
More Audi A8 figures
Other diesel variants
All diesel A8 (D4) variants · A8 (D4) 2010-2017 overview · All Audi figures