Unlock serious performance from your Gen 2 B58-powered BMW with Nforcd’s 475 wheel horsepower package for the M240i, M340i and M440i. This curated bolt-on upgrade pairs JB4 tuning with high-flow intake options and essential supporting hardware to deliver a powerful, plug-and-play solution without permanent modifications.
- JB4 performance tuner with Bluetooth connectivity and app control for wireless map changes and data logging, compatible with locked ECUs.
- Choice of BMS B58 cold air intake options to improve airflow on G-chassis models.
- BMS turbo double-baffle oil catch can helps reduce oil vapour entering the intake system under boost.
- Six NGK 96206 spark plugs included, plus gapping tool, magnetic spark plug socket and feeler gauge for straightforward installation. Recommended gap 0.022 inch.
- No cutting or permanent changes required for a clean, reversible install.
- Includes JB4 accessories pack badge, number plate frame, magnetic vent phone mount and Burger Motorsports sticker sheet.
Fitment
BMW 2 Series 2022+ G42 M240i, M240i xDrive, M240xi
BMW 3 Series 2019 to 2024 G20 and G21 M340i, M340i xDrive, M340xi
BMW 4 Series 2021 to 2024 G22, G23 and G26 M440i, M440i xDrive, M440xi including Gran Coupe
This aftermarket tuning package is a direct route to around 475 whp potential from your Gen 2 B58 with simple bolt-ons and full JB4 app control. Installation guides are available for each component, and Nforcd is on hand to advise. Order today for fast UK delivery, or book professional fitting with Nforcd in Warwickshire. To request a fitting quote, email Sales@nforcd.com.