G20/G21
Reference period: 2019–2021
Source stock
184 hp / 300 Nm
Stage 1 from this source
260 hp / 420 Nm
Difference for this source
≈+76 hp / ≈+120 Nm
Sources differ; NoordTune checks the applicable configuration.
Published sources:#1
Stage 1 Price on request
BMW 3 Serie G20/G21 320i Stage 1
184 hp → To be confirmed · To be confirmed
Catalog estimate
Catalog estimate — ECU check before tuning
This model-engine combination includes estimated catalog data. Displayed power and torque are useful tuning estimates, not measurements of your vehicle. The exact ECU and configuration are checked before tuning.
Indicative values; final work after vehicle and ECU verification.
Stock
184 hp
300 Nm
Stage 1
To be confirmed
Gain
To be confirmed
Stage 1 · source examples
Comparable engine references are available
The exact Stage 1 result is not confirmed for this broad catalog entry. These separate published source examples apply only to the listed application years and factory power/torque. Engine, ECU, fuel and installed vehicle configuration still require confirmation.
Recommended package
Choose the setup that fits your car
For daily use we usually recommend Stage 1. Stage 2 is a performance-focused, vehicle-specific option that requires a hardware and vehicle-condition check first.
Our advice: Stage 1
Best daily setup
Stage 1
Safe daily drivability, stock hardware and a clear improvement in power and torque.
To be confirmed / To be confirmedPrice on request
Performance setup
Stage 2
More performance with supporting hardware and checks of maintenance condition, cooling and operating load.
To be confirmed / To be confirmedPrice on request
Catalog illustration of peak values; not a dyno measurement or measured RPM curve.
Package breakdown
Stage 1
- Custom ECU remap
- Original software readout and backup
- Boost, fuel and torque-limit optimization
Requirements
Indicative values. The exact configuration is confirmed before work.
- Check engine, vehicle condition and ECU access before work.
- Torque: to be confirmed.
ECU: Bosch MG1CS201 (documented application; installed type to be confirmed)Gearbox: 8-speed Steptronic (Installed type to be confirmed)Fuel: PetrolYears: 2019-2024
ECU and transmission labels describe the known family. The exact variant is confirmed before work starts.
G20/G21 320i, European 184 hp / 300 Nm configuration. Bosch MG1CS201 is a documented application, but the installed DME and software/access state are not identified. Confirm engine/calibration, fuel, catalyst and transmission first; the MG1CS003 184/270 reference is incompatible.
About this engine profile
How to read this vehicle profile
Which engine version does this page cover?
RDW provides make, technical type, registration year, fuel and factory power. The actual engine code, ECU software and transmission must be confirmed before applying any tuning indication.
Why is Stage 1 only an indication?
Published power and torque figures can vary by engine, model year, ECU software and condition. This is a reference profile, not a vehicle-specific measurement or guaranteed result.
When does Stage 2 apply?
Stage 1 assumes compatible original hardware. Stage 2 needs individual assessment of additional hardware, reliability and legal requirements; no automatic power gain is promised.
Where can I request advice or a quotation?
You can share the vehicle selection from the catalog. Final pricing, diagnostics, ECU verification and workshop work are handled through NoordTune.nl.