

Alpina B8 2021 -> ... 4.4 Bi-Turbo V8 621hp
Performance
Stock vs tuned
All gains based on tested files written by professional calibrators.
Stock
Stage 1
Stage 2
Not available for this engine.
Power and torque
Peak figures from our records. Curve shape is modelled, not a dyno trace.
ECU
Compatible ECU
No compatible ECUs reported. Contact us before placing an order.
Specifications
Technical data
- Displacement
- 4395 cc
- Engine code
- N63B44T3
- Bore
- 89.00 mm
- Stroke
- 88.30 mm
- Compression
- 10.50
- Turbo type
- —
- Fuel
- Petrol
- Premium fuel
- Required
Tuning file for Alpina B8 2021 -> ... 4.4 Bi-Turbo V8 621hp
ECU tuning files for the Alpina B8 2021 -> ... 4.4 Bi-Turbo V8 621hp are written and tested by professional calibrators. Each chiptuning file (Stage 1, Stage 2 and additional services like DPF OFF, EGR OFF and AdBlue removal) is programmed using the latest software and validated through years of remapping experience on the Alpina B8 platform.
Bee Chiptuning specializes in custom ECU remapping for Alpina vehicles. Every tuning file we deliver is designed for the best performance gains with a real safe margin remap that respects the limits of your hardware. Whether you want more horsepower, more torque, improved throttle response or better fuel economy, our dyno-tested calibrations deliver consistent and repeatable results on the 4.4 Bi-Turbo V8 621hp.
Our benefits
- Files written by professional calibrators
- Dyno-tested before delivery
- Stage 1 and Stage 2 calibrations
- Delivered in less than an hour
- Direct support via WhatsApp
Ready to tune?
Sign up and upload your original file.
You'll receive a tested ECU file for this exact engine in less than an hour. Free credit on registration, no card needed.
