Description
JB4 Performance Tuner for 2016+ Infiniti Q50/Q60 VR30 3.0L Twin-Turbo
Unlock the full potential of your Infiniti Q50 or Q60 VR30 twin-turbo engine with the industry-leading JB4 Performance Tuner. Engineered for enthusiast-grade performance and daily-driven reliability, the JB4 delivers remarkable power gains, enhanced drivability, and unmatched tuning flexibility—all through a simple plug-and-play installation.
Designed for both stock and modified vehicles, the JB4 integrates seamlessly with your factory ECU using advanced CANbus technology, giving you real-time control, precise performance adjustments, and race-proven reliability. Whether you're looking for faster 0–60 times, stronger mid-range acceleration, or customizable tuning maps, the JB4 sets the benchmark for modern turbocharged tuning.
Key Power Gains, Features & Benefits
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Up to +30whp and +40wtq on a completely stock vehicle
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Significant improvements to 0–60mph and quarter-mile acceleration
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Preloaded VR30-specific tuning software with up to 8 adjustable maps for pump gas, bolt-on mods, and ethanol blends
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E85-compatible maps for even greater performance
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Full CANbus OBDII integration for unmatched tuning refinement and safety
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Read and delete fault codes directly through the JB4 interface
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Real-time data monitoring and logging of up to 40 engine parameters via the JB4PRO mobile app
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Boost-by-gear control for optimized traction in lower gears
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Exhaust valve control on most applications
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Seamless compatibility with all factory drive modes
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Factory-smooth drivability with unchanged fuel economy during normal use
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91+ octane recommended for peak performance
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Not VIN-locked — easily removed without a trace and transferable to other vehicles
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Heavy-duty billet aluminum enclosure for maximum protection
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Made in the USA and backed by a 5-year warranty
Vehicle Fitment — Infiniti VR30 3.0L Twin-Turbo
Infiniti Q50 (2016+)
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Luxe, Sport, Silver Sport, Sensory, Red Sport 400
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Twin-Turbo VR30DDTT V6
Infiniti Q60 (2016–2022)
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Luxe, Sport, Silver Sport, Sensory, Red Sport 400
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Twin-Turbo VR30DDTT V6
What Is the JB4?
The JB4 is a sophisticated plug-and-play tuning system for modern turbocharged engines. Installed between critical engine sensors and the ECU, it safely modifies boost, fuel, ignition timing, and air-fuel ratios to deliver substantial performance gains—all without permanently altering your factory ECU.
Unlike generic “chip tuners,” the JB4 leverages advanced data streams—including CANbus, fuel trims, timing, and load—to deliver precise, intelligent tuning that adapts to your driving style and conditions. Regular firmware updates from Burger Motorsport ensure continuous improvement, added features, and evolving performance capabilities. The tuner can be removed at any time and sold or transferred to another supported vehicle.
Is the JB4 a Real Tune?
Absolutely. The JB4 performs tuning adjustments comparable to a full ECU reflash, but without unlocking or flagging your ECU. By dynamically adjusting boost, timing, AFR, and fuel trims based on real-time data, it produces smooth, safe, and significant gains while retaining all factory safeguards. This makes the JB4 one of the most powerful and safest tuning solutions available for the Infiniti VR30 platform.
