Group 8: JB4 Tuner Gen3B

JB4 Group 8: Gen3B The JB4 is a plug and play Audi tuner that plugs into easy access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 800 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and powerful performance.

Minimum power gains of 30whp and 45ft lb on 91AKI/95RonNo ECU flash needed and compatible with locked ECUsUnlike other tuning systems, the JB4 includes a fully programmable CANbus system, at-home upgradable firmware, and data logging capability. CANbus allows the JB4 to access engine data to take into account pedal input, throttle position, gear, engine speed, air/fuel ratio, fuel trims, ignition advance, knock, and many other factors and incorporate those into the performance mapping.

It can also read/delete fault codes, incorporate unique safety features such as keeping boost pressure low until oil and water is up to temperature to provide proper engine and turbo lucubration and drop to a low boost map if the engine starts to overheat, run lean, excessively knock, or over boost.The default JB4 map1 runs 3psi over stock peak and tuned maps, including stock and valet mode, can be selected on the fly using the optional wireless JB4PRO bluetooth adapter. Installation is very discrete, and it quickly removes without a trace when needed.

Fuel economy during normal driving is unchanged. Compatible with all driving modes. 5-year warranty.Visit JB4tech.com for the JB4 Map Guide. Wirelessly Connect to your JB4: Grab our all-new JB4 PRO smartphone connection to wirelessly connect the JB4 BMW tuner to your Bluetooth 4.0 compatible iOS or Android device.

This option allows 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. Our new adapter fits fully inside the JB4 enclosure for enhanced weather protection and a more streamlined look.

The JB4PRO Free app features an intuitive easy-to-use interface, help buttons, and advanced log analysis tools that can estimate the performance of your car and help identify any tuning concerns.

Vehicle Fitment

• 2017-2021 Audi 8V A3 FWD 2.0T 184hp
• 2017+ Audi B9 A4 2.0T 190hp
• 2017+ Audi B9 A5 2.0T 190hpSkoda
• 2017+ Skoda Kodiaq 2.0T 180hp Seat
• 2017+ Seat Ateca 20T 190hpVolkswagen
• 2017+ VW Aerton 2.0T 190hp
• 2017+ VW Tiguan 2.0T North American
• 2017+ VW Tiguan 2.0T 140kw/184hp
• 2017+ VW T-Roc N1 2.0T 184hp
• 2018+ VW Passat 2.0T North American 174hp
• 2018+ VW Polo GTI AW 2.0T 200hp Audi JB4 Mobile demo video