JB4 BMW E46: The Ultimate Driving Experience

The JB4 BMW E46 isn’t just a car—it’s a legacy in motion. With its powerful inline-six engine and razor-sharp handling, this E46 model redefined what a sport sedan could be, captivating drivers for generations.

Powered by a 3.0-liter inline-six producing up to 242 horsepower, the JB4 BMW E46 delivers responsive acceleration and precise throttle control. Its lightweight chassis, anti-roll bars, and advanced suspension setup ensure a balanced ride, making every drive a joy for spirited drivers and daily commuters alike.

The E46’s iconic feel comes from its balanced weight distribution and neutral steering, offering near-perfect agility around corners. Celebrated among tuners and collectors, this model’s heritage blends classic elegance with modern performance, making it a timeless favorite in enthusiast circles.

Inside, the JB4 BMW E46 combines sporty minimalism with premium materials. Well-seated cabinals, precise controls, and a thoughtfully laid-out dashboard enhance both driving pleasure and daily utility. Authenticity and craftsmanship define its interior, elevating every journey into a refined experience.

The JB4 BMW E46 stands as a benchmark of automotive excellence—where power meets precision and passion meets performance. Whether you're restoring this classic or enjoying it on the road, it delivers an unmatched driving thrill. Upgrade your experience today and experience the E46 legacy firsthand.

Manufacturer of the world-famous JB4 performance tuner. We've been pioneering plug & play performance tuning, intakes, and mods since 2007. Replacement JB4 OBDII cable suitable for use in all applications where the JB4 attaches to the OBDII port under the dash.

Includes JB4 side repair harness molex pigtail. The Burger Motorsport JB4 Tuner is one of the most versatile, adaptable modifications you can make to your BMW, and among the simplest to install. A true plug & play solution, the JB4 offers support for everything from stock cars to fully built monsters.

Im happy with my jb4,I think its a bargain for $400.I bought CAI and catless downpipe,but cant find anyone willing to install it.So, I just run the jb4 in mode 1. Ive briefly tried mode 2 but you cant tell a difference in pull from drivers seat. Both options allow you to record and analyze vehicle and tuning data, change JB4 performance maps, and update JB4 firmware as we release free newer versions with updates, more powerful maps, and new features under development.

BMW N54 JB4 2 Step / NLS Relay is a powerful add-on for BMW N54 engines that enables your JB4 to "2-step" by cycling power to the ignition coils, allowing for quick boost build. JB4 Review after 10K miles All times are GMT -5. The time now is 12:06 AM.

JB4 is a plug & play chip tune for turbocharged vehicles. The JB4 comes preloaded with custom tuning software and up to 8 maps for various fuel and modification levels. The JB4 installs between your car's sensor and its DME/ECU (computer) and manipulates vehicle performance through these connections.

Installs and removes without a trace. 5. Burger Motorsports BMW E Chassis N55 JB4 Tuner for 135i, 335i, X1, X5, X6 - Burger Tuning $479.00 In Stock.