BMW G20 320i LCI II Stage 3 Gearbox Tuning

Plan engine and gearbox tuning together.

The €750 complete package for the B48B16-powered model includes ECU Unlock, 300 HP engine tuning, coding and Stage 2/3 gearbox tuning with Gear Display. Installation in Ataşehir, coverage and booking: G20 / 320i · 300 HP engine tuning →

What Transmission Tune II includes

• Launch Control — Enables the launch function that manages revs and traction for standing starts.
• Shift lights — Shows the shift point on the instrument cluster with a light bar.
• 6,900 rpm setting — Allows the engine to rev up to 6,900 rpm in manual mode.
• Torque limiter removal — Adjusts the transmission torque limit to suit power-increased engine software.
• Faster gear changes — Shortens shift times for quicker changes when driving sportily.
• Shift exhaust sound (audible with a suitable exhaust) — Adds the brief ignition-cut sound on upshifts; a suitable exhaust is needed for it to be clearly audible.
• Gear Display

How is it delivered?

Assisted remote service is available by appointment.

This is a MOSTUNED service appointment. The price does not include an iOS app flash licence.

Compatibility for your car

Features depend on equipment, iDrive generation and current software. We confirm the scope using your VIN and equipment before booking. Coding services are separate from ECU flash packages sold for the app.

What to know for the BMW 3 Series G20 LCI II (2024+)

Transmission software for the BMW 3 Series G20 LCI II (2024+) runs on the ZF 8-speed automatic’s control unit and is separate from engine software. Performance Package II changes shift character and launch functions without touching the engine calibration.

If your car already has power-increased engine software, or you plan to flash one with MOSTUNED, mention it before booking so torque limits and shift settings can be assessed. A software update at a BMW dealer can reset transmission settings; they then need to be reapplied.

Frequently asked questions

How much is Transmission Tune II for the BMW 3 Series G20 LCI II?

Transmission Tune II for the BMW 3 Series G20 LCI II (2024+) costs €250. All features in the package are included; an iOS app Flash licence is separate from this service.

How long does it take and where is it done?

The estimated service time is about 20 minutes. It is carried out with assisted remote service by appointment or at our workshop in Ataşehir, Istanbul.

How do I know my car is compatible?

Compatibility depends on production period, iDrive generation, equipment and current software version as well as the model name. We check it with your VIN before booking; just share your VIN on WhatsApp.

What is the difference between Stage 2 / Stage 3?

Stage 2 includes Launch Control, Shift Lights and more direct throttle response. Stage 3 adds faster shifts, revving to 6,900 rpm, an adjusted transmission torque limit and the upshift sound.

Related services

• BMW G20 320i LCI II Coding & Cluster · ID8.5 — €150
• BMW G20 320i LCI II M Track · M3/M4 Cluster — TRY 17,500
• BMW G20 320i LCI II Stage 2 Gearbox Tuning — €250
• BMW G20 320i LCI Stage 3 Gearbox Tuning — 2022–2024
• BMW G20 320i Stage 3 Gearbox Tuning — 2019–2022
• BMW G22/G26 420i LCI II Stage 3 Gearbox Tuning — 2024+
• BMW G22/G26 420i LCI Stage 3 Gearbox Tuning — 2024+
• BMW G22/G26 420i Stage 3 Gearbox Tuning — 2020–2024
• BMW G30 520i Stage 3 Gearbox Tuning — 2017–2020
• G20 / 320i · 300 HP engine tuning — 280 / 300 / 321 HP — MOSTUNED Flash
• BMW coding & software price list — All models in one table

Back to your model

• BMW G20 2024+ LCI II — All available packages

Compare this service

• BMW Gearbox Tuning — Packages, prices and common questions