ChiptuneMAP
ChiptuneMAP/Alpina/XB7/4.4T - 621ch
Alpina

4.4T - 621ch Tuning

Alpina XB7: detailed power and torque gains by stage.

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Stage 1 for your XB7: garage prices

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Gains by stage(4)

Power

621 hp

Torque

800 Nm

Petrol
Power
621→700hp
+79 hp
+13%
Torque
800→900Nm
+100 Nm
+13%
OriginalTuned

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Tuners · ChiptuneFILE

Stage 1 file for the 4.4T - 621ch

Send the ECU read, get back an optimised and tested file.

  • Stage 1, Stage 2, E85
  • Checksum corrected, original file kept
  • For professionals only
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Everything about 4.4T - 621ch tuning

Tuning the 4.4T - 621ch found in the Alpina XB7 is one of the most popular performance upgrades. This engine offers excellent potential for power and torque gains.

On ChiptuneMAP, find verified gain data for each stage, compare tuner prices and find the ideal professional for your project.

Gains summary by stage

On the Alpina XB7 4.4T - 621ch, tuning delivers up to +149 hp and +190 Nm depending on the stage. Stock vs tuned figures:

StagePowerTorqueIndicative price
Stage 1621 → 700 hp800 → 900 NmOn quote
Stage 2621 → 770 hp800 → 990 NmOn quote
E85 Flexfuel621 → 621 hp800 → 800 NmOn quote
E85+621 → 700 hp800 → 900 NmOn quote

Frequently asked questions

What gains can I expect from tuning the 4.4T - 621ch?
Tuning the 4.4T - 621ch (Alpina XB7) delivers significant power and torque gains depending on the chosen stage. Stage 1, with no hardware modifications, offers the best gain-to-reliability ratio.
Is tuning reliable on the 4.4T - 621ch?
Yes, the 4.4T - 621ch is known for its reliability when tuned, especially at Stage 1. It's essential to use a professional, experienced tuner with maps tailored to your engine.
How much does Alpina XB7 tuning cost?
Prices vary by stage and tuner. Check our directory to compare rates from professionals near you.
Should I get a tuning box or an ECU remap?
ECU remapping (modifying the engine control unit map) delivers better results and integration than a plug-in tuning box. It's customized for each engine.
How do I find a tuner for my Alpina XB7?
Use the ChiptuneMAP directory to find a tuner near you. Compare prices, services and specialties.

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