JB4 N20 Tuner

The Burger Motorsports JB4 N20 Tuner is an advanced performance module engineered to significantly boost the capabilities of BMW vehicles equipped with N20 turbocharged engines. This system integrates seamlessly by connecting between your car's sensors and its DME/ECU, allowing for sophisticated manipulation of engine parameters to unlock greater power and responsiveness. The JB4 builds upon the foundation of Stage 1 tunes by incorporating CANbus functionality. This key feature enables on-the-fly map switching directly from the dashboard, offers enhanced diagnostic capabilities for code reading, and provides support for ethanol fuel blends, offering a versatile tuning solution. Performance gains from the JB4 N20 Tuner are substantial. On a stock N20 engine, users can expect an increase of up to 35hp and 60 lb-ft of torque at the wheels. This power increase can make vehicles like the 328i and 528i as fast or faster than their 335i and 535i counterparts. In testing, a 2012 F30 328i saw its 0-60 mph time drop from 5.4 seconds to an impressive 4.7 seconds. Applications for the JB4 N20 Tuner include the 2012+ F30 328i, 2010+ F10 528i, 2012+ E89 Z4, and 2012+ E84 X1, all featuring the N20 engine. It is crucial to note that this product is intended for use with closed-course competition vehicles only and cannot be shipped or installed in California due to emissions regulations.