10/08/2026
Audi A5 B9.5 2.0 TFSI Stage 3 — Supertune G25-550 Hybrid Turbo. 🔥
When hardware and calibration are engineered together, the results speak for themselves.
Fitted with the Supertune G25-550 Hybrid Turbo, this Audi A5 B9.5 receives a complete custom calibration developed through step-by-step dyno tuning, ensuring every parameter is optimized for performance, drivability, and long-term reliability.
📊 Stock Performance
156.75 WHP
254.78 Nm
📈 After Supertune G25-550 Stage 3
280.82 WHP
402.36 Nm
🔥 Dyno-Proven Gains
✅ +124.07 WHP (+79.2%)
✅ +147.58 Nm (+57.9%)
Every Supertune Stage 3 calibration is individually developed by optimizing:
✔️ Turbo boost strategy
✔️ Wastegate control
✔️ Ignition timing
✔️ High-load fueling calibration
✔️ Torque model optimisation
✔️ Camshaft timing (VVT)
✔️ Throttle mapping
✔️ Knock control & engine protection
No two engines behave identically. Every calibration is refined on the dyno through multiple revisions until the engine delivers its maximum safe and repeatable performance.
This isn’t just a turbo upgrade. It’s a complete transformation.
✔️ Lightning-fast spool with a broad, usable powerband
✔️ Massive mid-range torque for relentless acceleration
✔️ Strong top-end pull that keeps building towards redline
✔️ Smooth, predictable power delivery with OEM-like refinement
✔️ Confidence-inspiring performance whether on the street or at the track
A bigger turbo alone doesn’t make a faster car.
The ECU calibration is what unlocks its true potential.
At Supertune, we don’t simply flash a Stage 3 file.
We engineer every calibration around the individual vehicle, ensuring the turbo, engine, and transmission work together as one complete package.
📊 Measured on the dyno.
⚙️ Engineered through data.
🏁 Proven on the road.
Custom calibrated by Supertune Auto.
🔥 Are you Supertuned yet?