Guide
Stage 3 tuning explained
Stage 3 covers hybrid turbos and built engines. These builds vary too much for a single price, so each file is quoted once we have the build details.
What Stage 3 covers
Stage 3 files are for cars with significant hardware changes, such as a hybrid or larger turbo, upgraded injectors and fuel pump, or internal engine work.
Because the hardware changes the engine's limits, the calibration must be written for that specific build. A generic file would be unsafe.
Results vary by engine, fuel, condition and supporting hardware, and no gain or outcome is guaranteed.
Stage 3 car
Pricing: Master file price €530 ex VAT · slave (Tier E) €320.
The list price is a starting point. The final quote depends on the build, the fuel, and the level of change you are asking for.
Send a full build sheet before you upload. The more detail we have, the sooner we can confirm the scope.
- Turbo make, model and size, and whether it is a hybrid.
- Injector size and type, and fuel pump or rail upgrades.
- Intercooler and intake specification, and exhaust size.
- Internal changes such as pistons, rods or camshaft, if fitted.
- Fuel type and the boost level you plan to run.
Common codes
P0234Turbocharger overboost condition. Boost pressure went above the safe limit.P0088Fuel rail or system pressure too high. Rail pressure went above the commanded limit.P2263Turbocharger boost system performance. Boost is not following the commanded target closely enough.P0236Turbocharger boost sensor A range or performance. The boost sensor reading does not match the expected value.
E85 and flex-fuel alongside Stage 3
Stage 3 builds sometimes use E85 or a flex-fuel setup. The E85 conversion is a separate service and is covered in the driveability and fuel guide.
Common fault codes
Codes vary by make, model and ECU. Read the stored codes on your own car before and after flashing.
P0234Turbocharger overboost condition. Boost pressure went above the safe limit.P0088Fuel rail or system pressure too high. Rail pressure went above the commanded limit.P2263Turbocharger boost system performance. Boost is not following the commanded target closely enough.P0236Turbocharger boost sensor A range or performance. The boost sensor reading does not match the expected value.
Questions about stage 3 tuning explained
Why is Stage 3 not a fixed price?
Each build is different. A fixed price would either overcharge simple builds or leave complex ones underpriced. The quote reflects the work involved.
Do you need the car on the dyno?
Dyno data is very helpful for a Stage 3 build. Send any runs you have. Testing itself is not part of our service.
See emissions-related files All questions
Emissions-related files are supplied for off-road, competition, agricultural and export use only, and must not be used on public roads.