Your Vehicle
BMW M3 M3 CSL 360hp
Technical Specifications
Power and torque increase
Stage 1: software remap only, no mechanical changes, fully reversible.
Stage 1: file 100 € online + installation 700 € at the workshop (on the bench) 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: 700 € network price, the workshop may charge less, paid at the chosen workshop (on the bench) · terms
Power Graph
BMW M3 M3 CSL 360hp: da 360 a 380HP
Remapping BMW M3
MasterTuning develops remapping for BMW. La BMW M3 M3 CSL 360hp può passare da 360 HP a 380 HP con un incremento di 20 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 M3 M3 CSL 360hp
The BMW M3 M3 CSL 360hp is equipped with a petrol engine that produces 360 HP and 370 Nm of torque in its factory configuration. With MasterTuning's professional ECU remapping, this BMW can achieve 380 HP (+6%) and 390 Nm (+5%).
Our Stage 1 tuning for the M3 E46 - 1998 - 2005 delivers an impressive gain of +20 HP and +20 Nm, optimizing the petrol engine's performance while maintaining reliability and staying within safe parameters.
The engine code 326S4 identifies this specific powerplant configuration. The Siemens/Continental MSS54 ECU is professionally recalibrated to unlock hidden potential while preserving engine longevity.
With 360 HP from factory, this BMW M3 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 M3 M3 CSL 360hp
Factory technical data for the BMW M3 M3 CSL 360hp (E46 - 1998 - 2005), 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 | 326S4 |
|---|---|
| ECU / Control unit | Siemens/Continental MSS54 |
| Fuel | Petrol |
| Compression ratio | 11.5 |
| Bore × stroke | 87.0 X 91.0 mm |
| Stock power | 360 HP · 370 Nm |
| Remapped power (Stage 1) | 380 HP (+20) · 390 Nm (+20) |
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 M3.
Frequently Asked Questions - BMW M3
How much power can I gain from remapping my BMW M3?
With MasterTuning Stage 1, your BMW M3 M3 CSL 360hp can gain +20 HP (from 360 to 380 HP) and +20 Nm of torque. This represents a 6% increase in power.
Which ECU does the BMW M3 M3 CSL 360hp use?
The BMW M3 M3 CSL 360hp uses the Siemens/Continental MSS54 engine control unit. MasterTuning recalibrates this ECU for Stage 1 and Stage 2.
What is the engine code of the BMW M3 M3 CSL 360hp?
The engine code of the BMW M3 M3 CSL 360hp is 326S4. You can find it in the vehicle documents or on the engine plate.
Is ECU remapping safe for the BMW M3 engine?
Yes, MasterTuning's remapping for the BMW M3 M3 CSL 360hp is developed within safe parameters. Each file is developed on your vehicle, checked in the workshop and stays within the mechanical limits of the 326S4 engine.
Is the BMW ECU remapping reversible?
Absolutely. The original factory calibration of your BMW M3 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.
Other Remaps You Might Like
Other Engines BMW M3 E46 - 1998 - 2005
Similar Power BMW
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.
Request Quote on WhatsAppYour data is safe. No spam, just your quote.