Audi R8 - 4.2 V8 FSI

2 ECUs found for this engine. Select an ECU to view available tuning services and pricing.

Audi R8 4.2 V8 FSI Engine Specifications

Fuel Type
Petrol
Displacement
4163 cc (4.2L)
Compression Ratio
12.5 : 1
Bore x Stroke
84.5 X 92.8 mm
Engine Code
BYH
Power per Liter
100.9 HP/L

Audi R8 4.2 V8 FSI Stage 1 Chiptuning Results

VariantOriginal HPTuned HP+HPOriginal NmTuned Nm+Nm
4.2 FSI 420hp420440+20430455+25
4.2 FSI 430hp430440+10430455+25

Audi R8 4.2 V8 FSI: Before this file is prepared

For the Audi R8 4.2 V8 FSI, the uploaded file is the final reference. We check whether it is original or already modified before preparing the order, and we contact you first if the read or selected service does not match the vehicle data.

  • Upload a complete original ECU read from the tool you used, or a TCU read only when the selected service is gearbox tuning.
  • Add the vehicle year, gearbox, read/write tool and any dashboard or diagnostic symptoms.
  • Select only the services that match the actual vehicle hardware and intended legal use.

Other R8 Engines

Audi R8 4.2 V8 FSI Frequently Asked Questions

What tuning services are available for the Audi R8 4.2 V8 FSI?
WEREMAP offers 43 tuning services across 2 ECU variants for the Audi R8 4.2 V8 FSI.
How much does ECU tuning cost for a Audi R8?
ECU tuning prices for the Audi R8 4.2 V8 FSI range from 24 to 600 credits, depending on the ECU variant and tuning service selected.
What ECU does the Audi R8 4.2 V8 FSI use?
The Audi R8 4.2 V8 FSI is available with the following ECU variants: Bosch MED17.1.1, Bosch MED9.1. WEREMAP provides professional tuning files for all of these.

Need This Tuning File?

Create an account, buy credits, and place your order. Most files delivered within 1 hour.

Create Free Account