Alpina B3 - ECU Remap Stage 1

About the Alpina B3

The Alpina B3 tend to be a series of high performance executive cars manufactured by German automobile manufacturer Alpina, which is based on the BMW 3 Series of the car manufacturer BMW. As of 2021, it is produced as a sedan and station wagon . Up to and including the E90 series, two-door sedans, coupes and convertibles used to be additionally offered. With the exception of the convertible, every model used to be optionally available with all-wheel drive. The current diesel variant runs under the Alpina D3 Biturbo.

Why Stage 1 for the 3.5i 360hp

Our Stage 1 calibration is designed for a completely stock vehicle — no hardware changes required. In practice this delivers a safe and reversible improvement in drivability.

Typical gains on healthy examples are from around 360 HP to 400 HP and from 500 Nm to 560 Nm (indicative; varies by condition).

What we do

• Initial diagnostics and a full backup of the original ECU file
• Calibration of timing/fuelling, torque limiters and boost strategies
• Throttle response and power delivery refinement with a focus on smoothness
• Road testing and post-map parameter checks

Safety and Warranty

We follow a conservative approach, maintaining thermal and mechanical margins to protect longevity.

The process is fully reversible (factory file can be restored) and requires no physical modifications.

Summary

A Stage 1 remap turns the Alpina B3 3.5i 360hp into a more responsive daily driver while keeping stock-like manners.

Contact us for a free quote and eligibility check.