JB4 for B58 INEOS Grenadier

Power gains up to 80WHP & 100WTQ on a stock Grenadier without the risks of flashing!

The JB4 tuner for the B58 powered INEOS Grenadier is the most advanced plug & play tuning system available for the 3.0L turbocharged engine platform. Power gains of up to 80 horsepower and 100 lb-ft of torque at the wheels are possible on a completely stock Grenadier running pump gas. Vehicles equipped with bolt-on upgrades, higher octane fuel, E85 mixtures, or larger turbochargers can see even greater gains. Now includes the JB4PRO adapter and free app built in!

No ECU flash required and fully compatible with locked ECUs.

The JB4 features a simple plug & play installation harness for fast installation and removal while offering advanced tuning features not available with other tuning systems. These include in-dash map switching between stock and performance maps, optional in-dash boost gauge display, boost limiting by gear for improved traction, progressive water/methanol integration, built-in data logging, fault code reading and clearing, optional electronic wastegate control to prevent throttle closure with exhaust modifications, exhaust flapper control, and many additional features.

Unlike many expensive tuning solutions, the JB4 does not require additional stages or supporting modifications. Simply install the JB4 as your first upgrade and immediately experience improved power delivery, smoother acceleration, and stronger turbo performance.

The JB4 requires no manual setup for basic operation. However users who want to adjust maps, log engine data, or access advanced tuning features can add one of our optional Bluetooth smartphone adapters.

Wirelessly Connect to your JB4:Our all-newJB4 PRO smartphone connection is included to wirelessly connect the JB4 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.

For more information about the JB4PRO mobile app