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Comfort First Jb4 E Chassis N55 Bmw Jb4 Tuner (a-harness) Now 30% Cheaper [Oh2D7fJ6]

$68.99 $220.99 -69%

Comfort First Jb4 E Chassis N55 Bmw Jb4 Tuner (a-harness) Now 30% Cheaper [Oh2D7fJ6]Introducing the Comfort First Jb4 E Chassis N55 Bmw Jb4 Tuner (a-harness) Now 30% Cheaper [Oh2D7fJ6], a revolutionary tuning solution designed to unleash the full potential of your N55 BMW. This advanced tuner offers a seamless and powerful upgrade

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Comfort First Jb4 E Chassis N55 Bmw Jb4 Tuner (a-harness) Now 30% Cheaper [Oh2D7fJ6]

Comfort First Jb4 E Chassis N55 Bmw Jb4 Tuner (a-harness) Now 30% Cheaper [Oh2D7fJ6]

Introducing the Comfort First Jb4 E Chassis N55 Bmw Jb4 Tuner (a-harness) Now 30% Cheaper [Oh2D7fJ6], a revolutionary tuning solution designed to unleash the full potential of your N55 BMW. This advanced tuner offers a seamless and powerful upgrade, providing up to 60hp to the wheels (80hp crank) on a stock vehicle and up to 100hp to the wheels (120hp crank) on a fully modified car. With its simple plug & play installation harness, you can easily enhance your BMW's performance without any additional modifications or previous stages. The JB4 Tuner is the perfect starting point for your racing experience, offering an entirely new level of speed and smoothness.

Product Specifications & Features

The JB4 Tuner is packed with cutting-edge features that set it apart from other performance chips. It comes preloaded with custom JB4 BMW tuning software and up to 8 maps for various fuel and modification levels, ensuring optimal performance across different scenarios. This tuner is compatible with ethanol (E85) fuels and offers built-in code reading capabilities for easy troubleshooting. The JB4 Tuner also includes a range of useful features such as real-time gauge monitoring, control over boost by gear, and exhaust flap operation. With CANbus OBDII integration, the JB4 Tuner delivers unparalleled tuning features and performance, outperforming non-integrated chip tunes. The JB4 Tuner is designed to run as smoothly as stock, ensuring a seamless driving experience without sacrificing fuel economy. To further enhance your tuning experience, the JB4 Mobile app allows you to log data, change performance maps, and update firmware wirelessly.

Benefits & Applications

The JB4 E Chassis N55 BMW JB4 Tuner is an ideal choice for both performance enthusiasts and daily drivers. With its impressive power gains, improved acceleration, and enhanced performance, this tuner is perfect for those looking to take their BMW to the next level. Its compatibility with various BMW models, including the 1 Series, 3 Series, and X Series, makes it a versatile solution for a wide range of vehicles. The JB4 Tuner is designed for those who demand more from their cars, offering a unique combination of power, safety, and ease of use. With its 5-year warranty and free USA shipping, the JB4 Tuner is a smart investment for any BMW owner seeking an unparalleled performance upgrade. Upgrade your BMW today with the JB4 E Chassis N55 BMW JB4 Tuner and experience the difference it makes.

What Our Customers Say

January 19, 2026

Absolutely no complaints!

This is a really good product.

- Tressa Y..

January 19, 2026

Absolutely no complaints!

I recommend this product 100%.

- Randy T..

January 19, 2026

Absolutely no complaints!

Brilliant design, excellent performance.

- Sadie Z..

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