Your Vehicle
BMW X4 3.5i 306hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible.
Stage 1: file 100 € online + installation 350 € at the workshop (via the OBD port) Book now
Power HP
Torque Nm
Buy the Stage 1 file, pay the installation at the workshop
100 € VAT included: the file developed for your engine, paid online
Installation: 350 € network price, the workshop may charge less, paid at the chosen workshop (via the OBD port) · terms
Power Graph
BMW X4 3.5i 306hp: da 306 a 365HP
Remapping BMW X4
MasterTuning develops remapping for BMW. La BMW X4 3.5i 306hp può passare da 306 HP a 365 HP con un incremento di 59 HP.
The development of each remap is customized by MasterTuning.
- 100% customised files with lifetime warranty
- Reference values for Stage 1: the file is developed on your vehicle and checked in the workshop
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details BMW X4 3.5i 306hp
The BMW X4 3.5i 306hp is equipped with a petrol engine that produces 306 HP and 400 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this BMW can achieve 365 HP (+19%) and 520 Nm (+30%).
Our Stage 1 tuning for the X4 F26 - 2014 - 2017 delivers an impressive gain of +59 HP and +120 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code N55B30A identifies this specific powerplant configuration. The Bosch MEVD17.2.6 / Bosch MEVD17.2.G ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 306 HP from factory, this BMW X4 is already a performance vehicle. Our remapping extracts even more potential, delivering exhilarating acceleration and enhanced driving dynamics for enthusiasts who demand the best.
Technical Specifications — BMW X4 3.5i 306hp
Factory technical data for the BMW X4 3.5i 306hp (F26 - 2014 - 2017), used by MasterTuning engineers to develop a remap tailored to this specific powerplant. Figures shown are reference values for Stage 1; the file is developed on your vehicle and checked in the workshop.
| Engine code | N55B30A |
|---|---|
| ECU / Control unit | Bosch MEVD17.2.6 / Bosch MEVD17.2.G |
| Fuel | Petrol |
| Compression ratio | 10.2 |
| Bore × stroke | 84.0 X 89.6 mm |
| Stock power | 306 HP · 400 Nm |
| Remapped power (Stage 1) | 365 HP (+59) · 520 Nm (+120) |
Don't want to touch the ECU?
Rapid Dimsport add-on modules connect to the engine sensors with original connectors: they fit in a few hours and come off without a trace, leaving the factory software untouched. Useful on a leased car, one still under warranty or one you plan to sell soon. Check which ones fit your BMW X4.
Frequently Asked Questions - BMW X4
How much power can I gain from remapping my BMW X4?
With MasterTuning Stage 1, your BMW X4 3.5i 306hp can gain +59 HP (from 306 to 365 HP) and +120 Nm of torque. This represents a 19% increase in power.
Which ECU does the BMW X4 3.5i 306hp use?
The BMW X4 3.5i 306hp uses the Bosch MEVD17.2.6 / Bosch MEVD17.2.G engine control unit. MasterTuning recalibrates this ECU for Stage 1 and Stage 2.
What is the engine code of the BMW X4 3.5i 306hp?
The engine code of the BMW X4 3.5i 306hp is N55B30A. You can find it in the vehicle documents or on the engine plate.
Is ECU remapping safe for the BMW X4 engine?
Yes, MasterTuning's remapping for the BMW X4 3.5i 306hp is developed within safe parameters. Each file is developed on your vehicle, checked in the workshop and stays within the mechanical limits of the N55B30A engine.
Is the BMW ECU remapping reversible?
Absolutely. The original factory calibration of your BMW X4 is always backed up before remapping. The process is 100% reversible at any time.
Will remapping affect my BMW warranty?
ECU remapping may affect your manufacturer warranty. We recommend checking your specific warranty terms. Many of our customers choose to remap after the warranty period or accept this trade-off for the significant performance gains.
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Book your remap or ask for a quote
Stage 1 can be bought online and is done at the workshop you choose; for Stage 2 we send you a quote.
Stage 2 is quoted on request: write to us and we will reply with price and timing.
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