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Power gains of up to 75hp and up to 101Nm on a stock Porsche!

The JB4 plug and play tuner attaches to easy to 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 1000 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and powerful performance. Unlike other tuning systems, it also includes a fully programmable CANbus system, upgradable firmware, and data logging capability.

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. Made in the USA. 5 year warranty.

Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit or to your Windows laptop with the BMS data cable. 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. A separate JB4 Mobile app purchase is also required.

JB4 Features and Benefits

• Power gains of up to 75hp and up to 101Nm on a stock vehicle
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom Porsche tuning software and up to 8 maps for various fuel and modification levels
• The JB4 offers a lot more performance, functionality, and safety than your average performance chip
• Quick Plug & Play Installation
• Includes the rugged JB4 billet aluminium enclosure for protection
• CANbus OBDII integration offering unrivalled tuning features and performance
• Improved performance over non-integrated chip tunes
• Runs as smoothly as stock, this is how your vehicle should have come from the factory
• Compatible with all driving modes
• Fuel economy unchanged during normal driving
• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
• 91 octane fuel or better required for performance gains
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• Not VIN locked and can be removed without a trace and resold down the road
• Made in the USA
• 5 year warranty

Vehicle Fitment

• 2010-2016 Porsche Panamera 971 V8 Twin Turbo, Turbo S
• 2011-2017 Porsche Cayenne 958 V8 Twin Turbo

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