Audi RS4 (B8) 2012-2015 4.2 V8 FSI 443bhp remap figures
Thinking of remapping a Audi RS4 4.2 V8 FSI 443bhp? The standard car makes 443bhp and 430Nm; with a Stage 1 remap from our Leicester workshop we expect around 479bhp and 465Nm, up to +36bhp and +35Nm.
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 | 443 bhp | 479 bhp | +36 bhp |
| Torque | 430 Nm | 465 Nm | +35 Nm |
All maps at a glance
| Map | Power | Torque | Expected gain, up to |
|---|---|---|---|
| Stock | 443 bhp | 430 Nm | |
| Stage 1Maximum software-only performance | 479 bhp | 465 Nm | +36 bhp +35 Nm |
| Stage 1 EcoPerformance with economy in mind | 470 bhp | 462 Nm | +27 bhp +32 Nm |
| Eco mapEconomy first | 467 bhp | 460 Nm | +24 bhp +30 Nm |
Who is the Stage 1 map for?
- Drivers who want a sharper throttle and a small, honest gain from software alone.
- Owners who would rather keep the car standard in every other way.
- Anyone who wants the fullest software-only map for this engine, accepting that the gain is modest without a turbocharger.
What this means for your RS4
Without a turbocharger the improvement comes from ignition, fuelling and throttle mapping rather than boost, so expect a smaller but still noticeable change in response.
Engine management is by a Bosch MED17.1.1 unit. 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 RS4 4.2 V8 FSI 443bhp?
We expect 479bhp and 465Nm against 443bhp and 430Nm as standard: up to +36bhp and +35Nm. 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 RS4 4.2 V8 FSI 443bhp?
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: 470bhp and 462Nm expected. The Eco map is economy first: 467bhp and 460Nm. Both still sit above the standard 443bhp and 430Nm.
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 RS4 figures
Other petrol variants
All petrol RS4 (B8) variants · RS4 (B8) 2012-2015 overview · All Audi figures