How much HP can I gain with a Audi S8 Stage 1 tune?

With a Stage 1 ECU tune, your Audi S8 2012-2018 can go from 520 HP to 615 HP, a gain of +95 HP.

Is ECU tuning safe for my Audi?

Yes. Westtuned uses manufacturer-calibrated ECU remapping with safe parameters. Stage 1 tunes require no hardware modifications and are fully reversible.

What is the difference between Stage 1 and Stage 2 for the S8?

Stage 1 delivers 615 HP with no hardware changes. Stage 2 pushes to 700 HP but may require supporting hardware modifications like downpipes or intercooler upgrades.

Audi S8

Name: Audi S8 2012-2018 ECU Tuning +180HP | Westtuned
Brand: Westtuned
SKU: WT-329
Availability: InStock

2012-2018 | 520 HP -> 615 HP

POWER

520 HP

615 HP

+95 HP

TORQUE

650 Nm

755 Nm

+105 Nm

ORDER FOR STAGE 1

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What Will Your Car Feel Like?

Estimated performance improvements

— sec

0-60 MPH

Stock: —s → Tuned: —s

—

— sec

¼ Mile

Stock: —s → Tuned: —s

—

— HP/ton

Power-to-Weight

Stock: — → Tuned: —

—

Estimates based on performance data. Actual results may vary depending on conditions, fuel quality, and vehicle specifics.

Performance Curve

Stock Stage 1

Detailed Description

Audi S8 2012-2018 Tuning Software by Westtuned

Westtuned develops precision ECU tuning software for the Audi S8 2012-2018, crafted to push your engine beyond factory restrictions. Our calibrations are built around real-world dyno data, delivering a smoother, stronger power curve without compromising engine reliability or daily drivability.

Our engineers develop every file using real-world data logging and dyno sessions, ensuring each Stage 1 calibration delivers consistent, repeatable power gains across a wide range of conditions and temperatures.

Stage 1 software pushes your Audi S8 2012-2018 from the stock 520HP / 650Nm to 700HP / 850Nm — a gain of +180HP, achieved with no hardware modifications required.

Our calibrations are compatible with both stock vehicles and those equipped with aftermarket hardware — intakes, intercoolers, exhausts and more — ensuring maximum performance at every stage of modification.

Choose Westtuned for:

Custom ECU remapping for Audi S8 2012-2018
Stage 1 performance software
Stage 1: 520HP → 700HP (+180HP)
Improved throttle response and torque delivery
Safe, data-driven tuning with reliability in mind

Transform your Audi S8 2012-2018 with professional tuning software from Westtuned and experience the power and responsiveness your engine was truly built for.