JB4 BMW M4: The Ultimate Performance Sedan for Enthusiasts

For driving purists and performance seekers, the JB4 BMW M4 redefines what a modern grand tourer can be—uncompromising power wrapped in refined elegance.

The JB4 generation marks a pivotal step in BMW’s M4 lineage, integrating advanced lightweight materials, optimized aerodynamics, and a more responsive suspension. This model balances track performance with daily drivability, setting a new benchmark for sports sedans.

Powered by a twin-turbocharged inline-six engine, the JB4 BMW M4 delivers exhilarating acceleration and a high-revving character. With precise torque delivery and responsive steering, it transforms every journey into a dynamic experience without sacrificing comfort.

Inside, the JB4 BMW M4 features a driver-centric cockpit with premium materials, a fully digital instrument cluster, and intuitive infotainment. Wireless charging, ambient lighting, and adaptive ambient settings elevate connectivity and luxury in a performance context.

Equipped with adaptive M suspension and rear-wheel steering, the JB4 BMW M4 offers unmatched cornering precision and stability. Whether navigating city streets or spirited roads, it delivers a balanced, engaging driving experience that rewards every turn and pedal input.

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The ultimate tune for your S58 powered G87 M2, G80 M3, and G82 M4, the JB4 allows you to go from factory stock to full race, and everywhere in between. Gains are 80whp/100wtq on pump gas and up to 150whp/175tq on higher octane or E85 mixtures. Technical Sections Engine / Drivetrain / Exhaust / Bolt-ons / Tuning Jb4 S58 Step By Step Install Thread Tools Bookmarks « Previous Thread Next Thread.

Tune your BMW S58 M2, M3, M4, X3M, or X4M with the JB4 tuner. The JB4 is loaded with great features and offers gains of 80+whp and 100+wtq. BMW M4 2021+ S58 G82 BMW M4 2021+ S58 G82 BMW M4 Competition What is a JB4? The JB4 is a plug & play tune available for turbocharged vehicles.

The JB4 tuner installs between your car's sensors and its DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster. JB4 Tuner with Bluetooth Adapter BMW 2021 - 2023 M2 M3 M4 G8X The ultimate tune for your S58 powered G87 M2, G80 M3, or G82 M4, the JB4 allows you to go from factory stock to full race and everywhere in between. S58 JB4 Tuner for 2021+ BMW G80 M3 & G82 G83 M4 Tuning Box.

Enhance your performance today with this tuning box! Worldwide express shipping, available now! The ultimate tune for your S58-powered G80 M3 and G82 M4, the JB4 allows you to go from factory stock to full race and everywhere in between. The JB4 installs and removes easily and includes many unique features not found in any other tune, including user-adjustable 1st and 2nd gear boost limiting, smartphone integration, electronic wastegate control, ethanol fuel support, and built.

Product Details: BMS JB4 Tuner - BMW F8X M3/M4/M2 Competition S55 Overview: Gains are up to 80whp/100tq on pump gas and up to 120whp/140wtq on higher octane or E85 mixtures without the risks of flashing! The ultimate tuner for your S55 powered vehicle, the JB4 allows you to go from factory stock to full race, and everywhere in between with the push of a button on your steering wheel or phone. S58 JB4 Tuner for 2021+ BMW G80 M3, G82 G83 M4, & 2023+ G87 M2 Gains are 80whp/100wtq on pump gas and up to 150whp/175tq on higher octane or E85 mixtures. The ultimate tune for your S58 powered G87 M2, G80 M3, or G82 M4, the JB4 allows you to go from factory stock to full race and everywhere in between.

Model Engine Search Reset Burger Motorsports JB4 Tuner for S55 2015-2020 BMW M3/M4/M2C $599.00 4 interest-free installments, or from $54.06/mo with Check your purchasing power.