Ignitions and Electrical Computers, Chips, Modules and Programmers

JB4

Plug and Play Tuner

$699.00

SKU: Porsche 718 JB4 + PRO BT Adapter

In Stock
In Stock
Ships by Aug 3
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30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The JB4 tuner is a plug-and-play performance enhancement for turbocharged Porsche 718 models from 2017 onwards. It integrates seamlessly with your car's ECU by connecting to sensors, allowing it to remap boost, timing, and fueling for significant performance gains and a reduction in turbo lag. This system features advanced SENT sensor technology and CANbus integration, which provides access to all engine data. This allows for unique safety protocols, such as maintaining low boost until optimal oil and water temperatures are reached, and automatically reducing boost if the engine overheats, runs lean, knocks excessively, or over-boosts. Key features include multiple tuning maps for various fuel types, including support for E85 ethanol blends, and the ability to read and delete fault codes. The JB4 also logs up to 40 engine parameters and includes boost-by-gear control for better traction. It offers a discreet installation that is fully reversible, leaving no trace when removed. The tuner operates smoothly, maintains stock fuel economy during normal driving, and is compatible with all driving modes. It is designed and assembled in the USA and comes with a 5-year warranty. Furthermore, the JB4 PRO BT Adapter allows for wireless connectivity to an iOS or Android device via Bluetooth 4.0. This enables on-the-fly map changes, extensive vehicle and tuning data analysis, and free firmware updates. The accompanying JB4PRO mobile app provides an intuitive interface with help buttons and advanced log analysis tools to estimate performance and diagnose tuning concerns. Compatible with the 2017+ Porsche 718 Cayman, Cayman S, Cayman GTS, Boxster, and Boxster S models. This tuner requires a minimum of 91 octane for optimal performance gains and is not VIN-locked, allowing for easy removal and transfer.

MIA's Description

The JB4 is a plug and play tuner for turbocharged vehicles, designed to enhance performance by manipulating boost, timing, and fueling. It attaches to existing sensors and works with the factory ECU tuning for optimal results and reduced turbo lag. This system utilizes full SENT sensor technology and CANbus integration for comprehensive engine data, enabling advanced safety features like temperature-based boost control and automatic map adjustments for overheating or knocking conditions. It also supports ethanol mixture mapping and is fully compatible with the JB4 mobile app for on-the-fly adjustments and data logging.

Fitment

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Available on iOS & Android

Specifications

BrandJB4
Part NumberPorsche 718 JB4 + PRO BT Adapter
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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