Control Unit
MED9.1.5 / 420907560
Audi R8 4.2 FSI 420hp · Petrol
Bosch
Petrol
308.9 kW / 420 HP
Legal notice
Race / export product. Tuning files are intended exclusively for motorsport, export and test-bench research — not road-legal (Art. 55 Reg. (EU) 2018/858). Disabling AGR / DPF / SCR voids the operating permit EU-wide and may void warranty and guarantee claims. The buyer bears sole responsibility for use.
Original ECU File
Original file
Verified, unmodified read-out file — the basis for your fileservice.
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Verified original file
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Fileservice – how it works
1
Read out original fileRead the control unit with a tool — KESS3, Autotuner, FLEX.
2
Order tuningChoose your optimisation and pay — PayPal, credit card, bank transfer.
3
Send the fileFile + order number to info@stefanel-performance.com.
4
Receive optimised fileThe processed file comes back by e-mail — ready to flash.
Processing usually within 24 hours
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Technical data
| Vehicle | Audi R8 4.2 FSI 420hp |
| Vehicle type | Passenger Car |
| Fuel | Petrol |
| Engine code | BYH |
| Displacement | 4163000 ccm (4163.0 L) |
| Power | 308.9 kW / 420 HP |
| Year | 2008 |
| Transmission | Automatic Transmission |
| ECU manufacturer | Bosch |
| ECU designation | MED9.1.5 |
| ECU prod. no. | 420910560L |
| Hardware no. | 420907560 |
| Software version | 504405 |
| SW version | 0030 |
| File size | 2,621,440 Bytes |
| Reading tool | Alientech KESSv2 OBD |
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