BMS JB4 Tuner for Subaru WRX, Ascent, Legacy, & Outback

BMS JB4 Tuner for Subaru WRX, Ascent, Legacy, & Outback - Image 2

BMS JB4 Tuner for Subaru WRX, Ascent, Legacy, & Outback - Image 3

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BMS JB4 Tuner for Subaru WRX, Ascent, Legacy, & Outback

Name: BMS JB4 Tuner for Subaru WRX, Ascent, Legacy, & Outback - Technica Auto Parts
Availability: InStock

Price range: $529.00 through $678.00

Optional Wireless Device Connection

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SKU: N/A Category: Uncategorized Tags: BMS, BMS JB4, Burger Motorsports, Burger Motorsports JB4, ECU Upgrade, JB4 Tuner, JB4 Tuner for Subaru, Performance Chip Tuner, Subaru Ascent, Subaru Engine Tuning, Subaru Legacy, Subaru Outback, Subaru Performance Tuning, Subaru Turbo Upgrade, Subaru WRX

Power gains of up to 50hp to the wheels on a stock vehicle

The JB4 is the most advanced and highly featured tuning system for your Subaru 2.4L 4 cylinder turbo. Power gains are up to 50hp to the wheels (70hp crank) on a completely stock car on pump gas, and gains with ethanol mixtures and bolt-on parts are even higher.

The JB4 features a simple plug & play installation harness for easy installation & removal and includes many features not found with any other tune. Including on the fly map switching from your phone/tablet instead between factory and various performance maps, boost limiting by gear for improved traction in lower gears, progressive water/methanol support, built-in data logging, built-in code reading, and much more.

Wirelessly Connect to your JB4: Grab one of our smartphone connection options to wirelessly connect the JB4 BMW tuner to your Bluetooth 4.0 compatible iOS or Android device. 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.

JB4 Mobile by DMAC was released in 2014 and has become the gold standard for phone-to-tuner integration with its unique gauge display options/themes and advanced security systems. The JB4 Mobile app is purchased separately for $29 and requires the JB4 Mobile adapter.

JB4PRO by Burger Motorsports is our brand-new in-house adapter designed from the ground up for ease of use and reliability. 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. More information on the differences between the app options is available here.

Subaru JB4 Features & Benefits

• Power gains of up to 50hp to the wheels on a stock vehicle
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom JB4 Subaru tuning software and up to 8 maps for various fuel and modification levels
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• View and record up to 30 different gauges/engine parameters in real-time with the JB4 app.
• Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4 app for a perfect launch
• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
• The JB4 offers a lot more performance, functionality, and safety than your average performance chip
• Quick Plug & Play Installation
• CANbus OBDII integration offering unrivaled 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
• 91 octane fuel or better required for performance gains
• Not VIN locked and can be removed without a trace and resold down the road
• Includes the rugged JB4 billet aluminum enclosure for protection
• Made in the USA
• 5 year warranty

Vehicle Fitment

• 2022+ Subaru WRX 2.4L 4 cyl. Turbo
• 2019+ Subaru Ascent 2.4L 4 cyl. Turbo
• 2020+ Subaru Legacy XT 2.4L 4 cyl. Turbo
• 2020+ Subaru Outback XT 2.4L 4 cyl. Turbo

What is a JB4?

The JB4 is a plug & play tune available for turbocharged vehicles. The JB4 tuner installs between your car’s sensors and the DME/ECU (computer) and manipulates vehicle performance through these connections making your vehicle much faster. While it’s not the only tuning system that operates this way the JB4 separates itself from the competition with much more advanced connection points and processing including CANbus, fuel & spark control, Bluetooth to your smartphone, and a variety of innovative and advanced features not possible with any other system. BMS regularly publishes free mapping and firmware updates adding performance and features as ongoing development allows. In addition, the JB4 system is not VIN-locked to your vehicle and can quickly be removed and swapped between cars or resold at a later time. Often imitated but never duplicated the JB4 has been the gold standard in plug and play turbocharged performance tuning for over a decade and is sold in over 67 countries worldwide.

2022 2023 2024 subaru wrx price horsepower specs tune tuner jb4

WRX DYNO RESULTS

Subaru WRX Dyno

Optional Wireless Device Connection	Optional Wireless Device Connection, JB4PRO Adapter (Uses Free JB4PRO App for iOS and Android), JB4 Mobile Adapter (Requires Paid JB4 App for iOS and Android)