Your Vehicle
BMW Z4 3.5is - N54 - 340hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible.
Power HP
Torque Nm
Book your Stage 1 remap
499 € VAT included · pay online, the work is done at the workshop you choose
Power Graph
BMW Z4 3.5is - N54 - 340hp: da 340 a 370HP
Remapping BMW Z4
MasterTuning is a leader in developing remapping for BMW. La BMW Z4 3.5is - N54 - 340hp può passare da 340 HP a 370 HP con un incremento di 30 HP.
The development of each remap is customized by MasterTuning.
- 100% tested and customized files guarantee
- Tested and developed on a 4x4 dyno
- Best performance, within safety margins
- Reduced fuel consumption
ECU Remapping Details BMW Z4 3.5is - N54 - 340hp
The BMW Z4 3.5is - N54 - 340hp is equipped with a petrol engine that produces 340 HP and 450 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this BMW can achieve 370 HP (+9%) and 500 Nm (+11%).
Our Stage 1 tuning for the Z4 E85 - 2003 - 2008 delivers an impressive gain of +30 HP and +50 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code N54B30A identifies this specific powerplant configuration. The Siemens/Continental MSD81 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 340 HP from factory, this BMW Z4 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 Z4 3.5is - N54 - 340hp
Factory technical data for the BMW Z4 3.5is - N54 - 340hp (E85 - 2003 - 2008), used by MasterTuning engineers to develop a tailored, dyno-tested remap for this specific powerplant.
| Engine code | N54B30A |
|---|---|
| ECU / Control unit | Siemens/Continental MSD81 |
| Fuel | Petrol |
| Compression ratio | 10.2 |
| Bore × stroke | 84.0 X 89.6 mm |
| Stock power | 340 HP · 450 Nm |
| Remapped power (Stage 1) | 370 HP (+30) · 500 Nm (+50) |
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 Z4.
Frequently Asked Questions - BMW Z4
How much power can I gain from remapping my BMW Z4?
With MasterTuning Stage 1, your BMW Z4 3.5is - N54 - 340hp can gain +30 HP (from 340 to 370 HP) and +50 Nm of torque. This represents a 9% increase in power.
Is ECU remapping safe for the BMW Z4 engine?
Yes, MasterTuning's remapping for the BMW Z4 3.5is - N54 - 340hp is developed within safe parameters. All calibrations are tested on our 4x4 dyno and stay within the mechanical limits of the N54B30A engine.
Is the BMW ECU remapping reversible?
Absolutely. The original factory calibration of your BMW Z4 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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