RACINGLINE OEM+ PERFORMANCE SOFTWARE
4.0 TFSI tuning
Two-stage OEM+ software for lower-output Audi 4.0 TFSI V8 applications.
LIKE FACTORY, BUT BETTER
Perfect performance.
Every day.
Every aspect of the engine’s behaviour is controlled by the calibration installed on its ECU. RacingLine develops each calibration from the ground up for safe, smooth and responsive performance.
Outputs are presented in kW and Nm as primary units. Actual results can vary with fuel, vehicle condition, fitted hardware and test method.
Let’s talk numbers.
Stage 1 output.
420–450 PS manufacturer output
525 PS supporting output
Let’s talk numbers.
Stage 2 output.
420–450 PS manufacturer output
570 PS supporting output
ENGINE COMPATIBILITY
Confirmed
applications.
Stage 2 requires intake, uprated cooling and sports-catalyst upgrades. Matched transmission software is essential.
- Audi S6 C7 / C7.5 — 2013–2019
- Audi S7 C7 / C7.5 — 2013–2019
- Audi A8 D4 4.0 TFSI — 2013–2015
Supporting
hardware.
Stage 1
- High-flow intake●
- Turbo inlet system●
- Performance intercooler●
- Sports-cat downpipe×
- DSG software tune●
Stage 2
- High-flow intake✓
- Turbo inlet system✓
- Performance intercooler✓
- Sports-cat downpipe✓
- DSG software tune●
Unique approach
Controller strategies are recalibrated as a complete system, following the same principles used by the manufacturer.
Matched hardware
Software is developed alongside RacingLine performance hardware for a complete, compatible package.
Factory manners
Strong performance is balanced with smooth delivery, drivability and everyday refinement.
Upgrades for life
Supported higher-stage calibration upgrades remain available as the vehicle’s hardware evolves.
Return to stock
The OEM+ system can restore the ECU to its original pre-installation calibration.
Measured development
Calibration work is validated on road and dyno, with outputs quoted at the crankshaft.




