Gains by stage(2)
Power
306 hp
Torque
600 Nm
diesel
Power
306→350ch
+44 ch
+14%
Torque
600→680Nm
+80 Nm
+13%
OriginalTuned
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Everything about 40d - 306ch tuning
Tuning the 40d - 306ch found in the BMW X6 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 BMW X6 40d - 306ch, tuning delivers up to +84 hp and +150 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 306 → 350 hp | 600 → 680 Nm | — |
| Stage 2 | 306 → 390 hp | 600 → 750 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 40d - 306ch?
Tuning the 40d - 306ch (BMW X6) 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 40d - 306ch?
Yes, the 40d - 306ch is known for its reliability when tuned, especially at Stage 1. It's essential to use a certified tuner with maps tailored to your engine.
How much does BMW X6 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 BMW X6?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.