BMW MS42/MS43 ECU Stage 1 Tuning Package - Mail In Service

Unlock enhanced performance with our Stage 1 ECU Tuning Package for BMW MS42 and MS43 ECUs. Designed for enthusiasts seeking improved throttle response, optimized fuel maps, and a more dynamic driving experience, this package is ideal for stock or lightly modified engines.

Features Include:

• Optimized Fuel Maps: Refined air-fuel ratios for better combustion efficiency
• Advanced Ignition Timing: Enhanced timing for improved throttle response.
• Rev Limit Increase: Safely raised rev limits to maximize engine performance.
• MAF Sensor Scaling: Adjusted to support higher airflow, accommodating future upgrades.
• VANOS

Want Launch Control, Pops & Bangs, EWS Delete or other Features?
Add them to your order here → Customize Your Flash

Send your BMW MS42 or MS43 ECU to our workshop, and we will flash it according to your specifications. Return shipping included.

1. Mail-In ECU:

• Send your BMW MS42 or MS43 ECU to our workshop.
• We flash it according to your specifications using verified procedures.
• Return shipping included.
• Required info: Vehicle model, year, and desired tuning features.

Supported ECU types: MS42, MS43
Supported BMW models: E36, E39, E46, E53 (verify on MS4x.net)

Note: Ensure compatibility with your vehicle model and ECU version before selecting this package.