RacingLine Tuning Software - Audi S4 B8 / 8.5
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Unlock the potential of your Audi S4 B8 / 8.5 with RacingLine OEM+ software: a calibration developed for the engine, fuel and hardware configuration, with usable performance throughout the rev range.
Performance at a glance
| Stage 1 | Stock reference | Tuned | Gain |
|---|---|---|---|
| Power (PS) | Varies | 400 | Variant dependent |
| Torque (Nm) | Varies | 500 | Variant dependent |
RacingLine published engine-family reference, in PS and Nm. Factory output varies by vehicle. Figures are illustrative and depend on fuel, hardware, engine condition and test method.
Choose your software package
- ECU only — £720.00 inc VAT (£600.00 ex VAT). Engine calibration licence.
- ECU + TCU — £960.00 inc VAT (£800.00 ex VAT). Engine calibration plus tuning for the compatible gearbox controller.
Software price only. Flashing labour, fitting, PDM/cables, controller unlocks, turbochargers and other hardware are additional. Purchase the licence online; activation requires a compatible vehicle and installation arrangement. A software purchase does not include a PDM or an automatic download for an unsupported controller.
Stages and supporting hardware
Stage 1 uses the standard engine hardware. Stage 2 requires a matching supercharger pulley arrangement and supporting hardware; confirm the pulley ratio and calibration before installation.
| Calibration | Power (PS) | Torque (Nm) |
|---|---|---|
| Stage 2 | 440 | 540 |
Why RacingLine OEM+?
RacingLine develops its calibrations alongside its performance hardware, with experience from road, track and dyno testing. The aim is a consistent delivery of power and torque with smooth everyday behaviour, rather than a peak figure alone. OEM+ also supports a return to the vehicle’s original stock calibration.
Compatible gearbox tuning revises torque handling and shift behaviour to complement the ECU calibration. A gearbox licence does not include a physical clutch or a controller unlock.
Vehicle compatibility and installation
- Audi S4 B8 / 8.5 — 3.0 TFSI - SC
- Engine/controller application: 3.0TFSI SC
- Listed transmission: DL501
Match the engine code, original power, turbo, emissions equipment and ECU/TCU software IDs before activation. A registration year alone does not establish compatibility. Newer locked controllers may require an additional unlock or may not support direct flashing.
Installation is through an authorised tuning centre or, for a supported application, a separately purchased RacingLine PDM. PDM availability must be checked for the actual controller; it is not included in this listing.
Tuning can affect manufacturer warranty and insurance cover. Retain emissions equipment required for road use, and maintain the vehicle appropriately for the increased output.
Performance information and supplier graphs: RacingLine 3.0TFSI SC software. Prices follow the 2026 supplier schedule.
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