CSG Ecutek Tuning Service for BMW B58 (Gen1), M340i, 440i, 540i and others

CSG Spec tuning offers custom tuning application specific to the vehicle requirements through EcuTek tuning suite. Custom tunes are specific to VINs and cannot be shared to another other platform allowing for a truly customized experience for you. This customized tuning service is specific for your vehicle.

Supported BMW chassis with B58 Gen 1 engine for this tuning:

- F22, F23, F30, F31, F32, F33, F34, F35, F36, G01, G02, G08, G11, G12, G20, G30, G32, G32

Which Tuning Level Do I Need?

Choose the level based on your existing modifications and/or goals:

Notes on Tuning Options

• An upgraded High-Pressure Fuel Pump (HPFP) is required for tuning with upgraded turbos or flex fuel.
• Port Injection Upgrade Kit is required for any ethanol content above 50% without sacrificing power output

What ECUTEK hardware or licenses do I need?

See our EcuTek tuning guide .

Why do we always talk about track testing and R&D?

Track testing can be the most strenuous type of testing available. Since a major portion of our clientele is catered towards track driving and sprint/endurance racing, power delivery is required to be consistent and stable lap after lap regardless of how heat soaked and how hot or cold the ambient temperatures are. This development transfers over to daily and street applications.

Whether you're doing the Texas Mile pull or accelerating onto the freeway, you can expect power delivery to be predictable and consistent pull after pull. This is our goal and our way of doing things.

What does CSG's custom tuning service offer?

In our experience and extensive database of data acquired through thousands of hours of track testing and dyno R&D, "canned" tunes or "base" maps are never an "one-size fits all". Immediate gratification can be experienced quick base maps, but bespoke tunes specific to each modification list and individual vehicle is important to optimize and maintain consistency.

Through extensive test parameters, we are able to develop maps that provide smoother power delivery, better modulation, improved drivability, stable power improvements, and better consistency under stress. No one wants a one-pull wonder, but everybody wants something that's repeatable and useful, especially on the racetrack.

Tuning Lead Times

Due to high volume of calibration inquiries, sales, and projects that CSG is involved in, please allow, on average, 72 hours (unless mentioned otherwise) for the preliminary calibration file to be provided. This will allow our calibration team to reach out and ensure that the parameters are developed accordingly for your specific vehicle. Each vehicle is unique and our calibration team will work with you to optimize your vehicle's needs. Thank you for your patience and understanding!