BMW Z4 M40i 340hp

Stage 1 chip tuning

Petrol turbo · G29 - 2019 -> · Bosch MG1CS002 · B58B30M1 / B58B30O1

Stage 1 Results

Stock (hp)

340

Stage 1 (hp)

403

Gain (hp)

+63 (19%)

Torque

500 → 580 Nm +80

* Values are approximate. Contact us for a precise calculation.

Technical Information

Fuel typePetrol turbo

Tuning levelStage 1

MethodOBD2

Engine codeB58B30M1 / B58B30O1

ECUBosch MG1CS002, Bosch MG1CS003, Bosch MG1CS024, Bosch MG1CS201

GenerationG29 - 2019 ->

Reading tools

Autotuner AutotunerCMD CMDFlashDimsport New GeniusMagicMotorsport FlexDimsport New TrasdatabFlash bFlash

About the remap

Stage 1 chip tuning for the BMW Z4 M40i 340hp increases power from 340 to 403 hp (+63 hp, +19%) and torque from 500 to 580 Nm. Turbocharged petrol engines respond exceptionally well to ECU optimization – adjusting ignition timing, boost pressure, and fueling maps unlocks the hidden potential built in by the manufacturer.

The remap is performed on the Bosch MG1CS002 ECU (engine code B58B30M1 / B58B30O1) via the OBD2 diagnostic port – no ECU removal required. We use Autotuner Autotuner, CMD CMDFlash, Dimsport New Genius and other professional tools. Results are verified with a dynamometer measurement.

In addition to Stage 1, we offer the following services for the BMW Z4 M40i 340hp: XHP gearbox tuning. All work is performed using professional equipment.

Every vehicle undergoes full diagnostics before and after the remap. We keep a backup of the original ECU calibration and guarantee the option to revert to stock settings at any time. JVK PRO is a professional chip tuning service in Riga with 16 years of experience.

Available services

Airbag Diagnostics Mileage Check Return to Stock Stage 1 XHP Tuning

FAQ

How much does Stage 1 chip tuning cost in Riga?+

Stage 1 chip tuning at JVK PRO in Riga costs from €200 including VAT; with dyno tuning and measurements – from €350. We confirm the exact price for your engine before starting.

Is Stage 1 safe for the engine?+

Yes. Stage 1 is an optimization within factory safety margins. The remap is done via the OBD2 diagnostic port without opening the ECU. Results are verified on our dynamometer.

How long does it take?+

Usually 2 to 4 hours, including diagnostics, remapping, and a dyno verification run.

Can the original software be restored?+

Yes, we keep a backup of your original ECU file. Reverting to stock is possible at any time.