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Exclusive Jb4 For Kia / Hyundai / Genesis 1.6t, 2.5t, 3.5t, Smartstream (including N Line) Quality Assured [NjKySgi9]

$44.99 $143.99 -69%

JB4 Tuning Kit for Kia/Hyundai/Genesis – Elevate your vehicle's performance with the JB4 tuning kit, designed specifically for Kia, Hyundai, and Genesis models with SmartStream engines. This advanced tuning solution offers a seamless and effective wa

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Exclusive Jb4 For Kia / Hyundai / Genesis 1.6t, 2.5t, 3.5t, Smartstream (including N Line) Quality Assured [NjKySgi9]

JB4 Tuning Kit for Kia/Hyundai/Genesis – Elevate your vehicle's performance with the JB4 tuning kit, designed specifically for Kia, Hyundai, and Genesis models with SmartStream engines. This advanced tuning solution offers a seamless and effective way to unlock your vehicle's full potential.

Core Features and Benefits

The JB4 tuning kit is a plug-and-play solution that connects to easy-to-access sensors in your engine bay, working in harmony with your factory ECU to optimize boost, timing, and fueling. With its 64MHz processor, the JB4 samples engine data 800 times per second, ensuring smooth and powerful performance. The kit is capable of auto-detecting between 2.5L and 1.6L turbo engines, making it a perfect fit for the entire Kia/Hyundai turbocharged lineup. Key features include:
  • Power gains of up to 100hp and 100tq
  • Improvements in 0-60 times and 1/4 mile times
  • Preloaded with custom JB4 Kia/Hyundai tuning software and up to 8 maps
  • Compatible with ethanol (E85) fuel
  • Real-time gauge and engine parameter monitoring via the JB4 app

Practical Uses and Target Audience

The JB4 tuning kit is ideal for car enthusiasts and drivers looking to enhance their vehicle's performance and efficiency. With its quick plug-and-play installation and CANbus OBDII integration, it offers unparalleled tuning features and performance. The JB4 runs as smoothly as stock, providing a seamless driving experience while delivering significant power gains. Whether you're a daily driver or a performance enthusiast, the JB4 tuning kit is the perfect choice to take your Kia, Hyundai, or Genesis to the next level. Key benefits include:
  • Increased power and performance
  • Improved fuel efficiency
  • Enhanced driving experience
  • Compatibility with various Kia, Hyundai, and Genesis models

What Our Customers Say

January 30, 2026

Absolutely no complaints!

The product is a great long-term value.

- Value_Investor.

January 30, 2026

Absolutely no complaints!

A truly satisfying purchase from start to finish.

- Jean Long.

January 30, 2026

Absolutely no complaints!

The product feels very balanced and well-engineered.

- Laura M..

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