45e - 394ch Tuning
BMW 5-serie — Detailed power and torque gains by stage.
Gains by stage(4)
Power
394 hp
Torque
600 Nm
hybride essence
Power
394→500ch
+106 ch
+27%
Torque
600→700Nm
+100 Nm
+17%
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Everything about 45e - 394ch tuning
Tuning the 45e - 394ch found in the BMW 5-serie 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 5-serie 45e - 394ch, tuning delivers up to +156 hp and +170 Nm depending on the stage. Stock vs tuned figures:
| Stage | Power | Torque | Indicative price |
|---|---|---|---|
| Stage 1 | 394 → 500 hp | 600 → 700 Nm | — |
| Stage 2 | 394 → 550 hp | 600 → 770 Nm | — |
| E85 Flexfuel | 394 → 394 hp | 600 → 600 Nm | — |
| E85+ | 394 → 500 hp | 600 → 700 Nm | — |
Frequently asked questions
What gains can I expect from tuning the 45e - 394ch?
Tuning the 45e - 394ch (BMW 5-serie) 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 45e - 394ch?
Yes, the 45e - 394ch 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 5-serie 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 5-serie?
Use the ChiptuneMAP directory to find a certified tuner near you. Compare reviews, prices and specialties.