EuroPrismCo

2021-2025 Audi A4/A5 Performance ECU Tune | B9.5 A4/A5

$999.99 Tax included. Shipping calculated at checkout.

4.9 (240+ reviews)

App-Controlled ECU Tuning Device: No ECU Tuning Device

No ECU Tuning Device Yes ECU Tuning Device

Quantity

2021-2025 Audi A4/A5 Performance ECU Tune | B9.5 A4/A5

Key Features:

Engineered with a performance-first mindset for immediate throttle input and stronger torque delivery
Optimized powerband for sharper and more responsive acceleration
100% Reversible, able to go back to stock settings at any time
Octane-specific calibration tailored to your fuel quality
Cold start behavior fully configurable (On/Off)
Downpipe readiness with check engine light suppression (for off-road use only)
Enhanced exhaust acoustics with extended or adjustable burble
Factory speed governor removal for unrestricted performance

Fitment:

Fits 2021 2022 2023 2024 2025 B9.5 Audi A4 A5 2.0L I4 Turbo Engine

Shipping & returns

Ships in 3–5 business days. 30-day returns on unfitted parts. Tracking provided on every order.

Fitment & installation

Test-fitted in-house for a precise, OEM+ fit. Professional installation available — contact us to book.