Your Vehicle
BMW 4 serie GC 420d 190hp
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 4 serie GC 420d 190hp: da 190 a 220HP
Remapping BMW 4 serie GC
MasterTuning is a leader in developing remapping for BMW. La BMW 4 serie GC 420d 190hp può passare da 190 HP a 220 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 4 serie GC 420d 190hp
The BMW 4 serie GC 420d 190hp is equipped with a diesel engine that produces 190 HP and 400 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this BMW can achieve 220 HP (+16%) and 440 Nm (+10%).
Our Stage 1 tuning for the 4 serie GC g2x-2021-2024 delivers an impressive gain of +30 HP and +40 Nm, optimizing the diesel engine's performance while maintaining reliability and staying within safe parameters.
The engine code B47D20B identifies this specific powerplant configuration.
As a diesel engine, this BMW responds exceptionally well to ECU tuning. Owners typically report improved throttle response, smoother power delivery, and in many cases, better fuel efficiency under normal driving conditions.
Technical Specifications — BMW 4 serie GC 420d 190hp
Factory technical data for the BMW 4 serie GC 420d 190hp (g2x-2021-2024), used by MasterTuning engineers to develop a tailored, dyno-tested remap for this specific powerplant.
| Engine code | B47D20B |
|---|---|
| Fuel | Diesel |
| Compression ratio | 16.5 |
| Bore × stroke | 84.0 X 90.0 mm |
| Stock power | 190 HP · 400 Nm |
| Remapped power (Stage 1) | 220 HP (+30) · 440 Nm (+40) |
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 4 serie GC.
Frequently Asked Questions - BMW 4 serie GC
How much power can I gain from remapping my BMW 4 serie GC?
With MasterTuning Stage 1, your BMW 4 serie GC 420d 190hp can gain +30 HP (from 190 to 220 HP) and +40 Nm of torque. This represents a 16% increase in power.
Is ECU remapping safe for the BMW 4 serie GC engine?
Yes, MasterTuning's remapping for the BMW 4 serie GC 420d 190hp is developed within safe parameters. All calibrations are tested on our 4x4 dyno and stay within the mechanical limits of the B47D20B engine.
Is the BMW ECU remapping reversible?
Absolutely. The original factory calibration of your BMW 4 serie GC 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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