SKU: 91740893097

BMW Gen 3 B48 & B58 JB4 Performance Tuner - Burger Tuning

$314.55 $349.50
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

BMW Gen 3 B48 & B58 JB4 Performance Tuner - Burger TuningPower gains of up to 130WHP on a stock vehicle without the risks of flashing! The JB4 is the most advanced and highly featured tuning system available for your B48 B58 GEN3 powered vehicle. Power gains are up to 100whp to the wheels (125hp crank) on a completely stock car on 93 octane, and even higher with ethanol fuel mixed in! This new JB4 BMW tuner is specifically designed for the latest Gen 3 B48 B58 variant and is capable of processing the new

Power gains of up to 130WHP on a stock vehicle without the risks of flashing!

The JB4 is the most advanced and highly featured tuning system available for your B48 B58 GEN3 powered vehicle. Power gains are up to 100whp to the wheels (125hp crank) on a completely stock car on 93 octane, and even higher with ethanol fuel mixed in!

This new JB4 BMW tuner is specifically designed for the latest Gen 3 B48/B58 variant and is capable of processing the new ultra fast SENT digital sensor signals in real time with zero latency. 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 in-app map switching 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. Other more expensive tuners may claim to equal the JB4's technology but upon closer examination lack most if not all of the JB4's features.

Remember the JB4 does not require any additional modifications or previous stages. Simply install the JB4 as your first and only modification and enjoy an entirely new fast and smooth racing experience. The JB4 also does not require any user setup or customization, but for those who are interested in logging, adding new features as we post them, etc, we suggest the Bluetooth mobile phone adapter.

Wirelessly Connect to your JB4: Grab our all-new JB4 PRO smartphone connection to wirelessly connect the JB4 tuner to your Bluetooth 4.0 compatible iOS or Android device. This option allows 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. 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. For more info on how to use the JB4PRO free app click here.

JB4 BMW Tuner Power Gains, Features, & Benefits

  • Power gains of up to 130hp to the wheels on a stock vehicle
  • Improves 0-60 times and 1/4 mile time
  • Preloaded with custom JB4 BMW tuning software and up to 8 maps for various fuel and modification levels
  • Ethanol mixture (E85) compatible tuning maps
  • Able to read/delete fault codes
  • View and record up to 40 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 

BMW 2 Series

  • 2023+ F44 B48 GEN3 BMW 228i xDrive Gran Coupe

BMW 3 Series

  • 2025+ G20 G21 B58 GEN3 BMW M340i including xDrive
  • 2025+ G20 G21 B48 GEN3 BMW 330i 330e 320i including xDrive

BMW 4 Series

  • 2025+ G22 G23 G26 B58 GEN3 BMW M440i including Gran Coupe and xDrive
  • 2025+ G22 G23 G26 B48 420i, 430i including Gran Coupe and xDrive

BMW 5 Series

  • 2024+ G60 G61 B58 GEN3 BMW 540i including xDrive
  • 2024+ G60 G61 B48 GEN3 BMW 530i, 530e including xDrive

BMW 7 Series

  • 2023+ B58 GEN3 G70 BMW 740i

X Series

  • 2023+ U11 U12 B48 GEN3 BMW X1 28i and xDrive28i
  • 2025+ G45 B58 GEN3 X3 M50 xDrive
  • 2024+ G05 B58 GEN3 BMW X5 M40i and xDrive40i
  • 2024+ G06 B58 GEN3 X6 xDrive40i
  • 2022+ G07 B58 GEN3 BMW X7 xDrive40i

For Gen1 & Gen2 B48 & B58

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.

Is the JB4 a real tune?

Yes the JB4 is a real tune. By tapping into specific sensors and CANbus for real time vehicle data the JB4 is able to alter your boost, timing, AFR, and/or fuel trims, to a similar degree an ECU reflash would, but without the vehicle ever knowing its been tuned. The result is safe, smooth, and significant power and torque gains while retaining your factory safety systems and without having to unlock/flag your ECU.

Gen 3 B48 Install Guide

Gen 3 B58 Install Guide

GEN 3 B58 Shocking Dyno Reveal: Our 2025 BMW M340i Pushes "30PSI"


Stock vs. JB4 Dyno Results

2023 G70 BMW 7 Series 740i B58, no other mods

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 91740893097

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4.8 ★★★★★
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Rehana Hines
Bozeman, US
★★★★★ 5
Great book
Format: Paperback
"The Psychology of Money" by Morgan Housel is a thought-provoking book that explores the complex relationship between money, greed, and happiness. Housel challenges conventional notions about wealth, arguing that it's not just about smart decisions, but also about behavior and psychology ¹. The book is divided into 20 short chapters, each tackling a different aspect of money psychology. Housel uses engaging storytelling and real-life examples to illustrate his points, making the book an enjoyable read. One of the key takeaways from the book is the importance of understanding your own values and priorities when it comes to money. Housel argues that money is a reflection of our values, and that our financial decisions should align with what's truly important to us ². The book also delves into the power of compounding, highlighting the benefits of long-term thinking and patient investing. Housel emphasizes that getting wealthy slowly is often a more sustainable and reliable approach than seeking overnight success ². Other notable themes in the book include the role of luck in financial outcomes, the dangers of complexity in financial decision-making, and the impact of stories and narratives on our financial behaviors ². Overall, "The Psychology of Money" is a insightful and accessible book that offers valuable lessons for anyone looking to improve their relationship with money. As one reviewer noted, "This book is the book I wish I had read when I was young" ¹. *Key Takeaways:* - *Money as a Reflection of Values*: Understand your own values and priorities when it comes to money. - *The Power of Compounding*: Long-term thinking and patient investing can lead to significant financial gains. - *The Role of Luck*: Recognize the influence of chance and unforeseen circumstances on financial outcomes. - *Simplicity over Complexity*: Avoid complex financial decisions and focus on simplicity and clarity. - *The Impact of Stories*: Be aware of how narratives and stories shape your financial behaviors and decisions.
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Reviewed in the United States on March 30, 2025
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Benjamin Rea
Lowell, US
★★★★★ 4
Simple yet effective
Format: Paperback
This book is incredibly effective. I enjoyed how everything was easy to understand and how it uses simple terms. Learning that money is about our behavior changed my perspective. I would recommend this book to anyone who is 16+ and interested in getting a head start on how to be smart with money!
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Reviewed in the United States on March 1, 2026
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little T studio
Louisville, US
★★★★★ 5
So Adorable! Thicker Paper and Fun to Color!
Format: Paperback, Format: Paperback
The Coco Wyo team has done it again! Another super cute coloring book filled with the cutest characters! The paper is thicker than in previous Coco books, yay! but if you’re using markers you will still want to put paper behind the page you are coloring. Ink bleed through still happens but not as much. Shading: If you want to add shadows on top of the marker areas, the Prismacolor premier soft core colored pencils work beautifully, but be sure to let the paper dry completely first. Update Review Regarding Marker Blending: With the thicker paper you can get away with many rounds of normal blending techniques with both alcohol markers. See the photo of mine with the shooting star. That page has so many layers of marker blending that I lost count, haha and the paper is still in tact! Yay! Creating Highlights: I use Sakura gelly roll pens as well as acrylic paint pens for highlights with no issues. Pro tip: If you’re using gelly roll pens, be sure they are bold 10. That will fit the scale of the art on the page and it won’t get clogged during use. Coloring Tools: I’ve tried using: Copic alcohol markers Tombow water based markers Ohuhu alcohol markers Kingart water based markers Kagito alcohol markers Prismacolor Premier Soft Core colored pencils Sakura GellyRoll Moonlight Bold 10 Pens Shuttleart Acrylic paint pens Everything has worked beautifully and I've been able to successfully achieve nice shading and blending. Note: All of the coloring tools I’ve mentioned above can be found and purchased right here on Amazon. I own lots of Coco books and love coloring in them. Their illustration style is calm and friendly, making coloring in them a relaxing and enjoyable experience. There were only a few pages in this book that I would not find enjoyable to color such as the holiday themed pages. I wish they wouldn't always put holiday themed pages in non-holiday books, but they can easily be removed if you want and this book really only had a few, so still worth purchasing in my opinion. You can tell much thought and care went into creating illustrations that would be fun to color while also helping to reduce stress, which is one of the things we all in the coloring community love about coloring right?! Coloring in Coco books is such a fantastic way to reduce stress and their designs are top notch. A highly recommended coloring book for all ages! I hope you found this review helpful!
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Reviewed in the United States on February 4, 2025
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Ella Grace
West Palm Beach, US
★★★★★ 5
Adore these coloring books!!
Format: Paperback
This coloring book is just darling and perfect for cozy coloring in the evening! The pictures are all unique and adorable! Can not recommend coco wyo coloring books enough! There a must have!!
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Reviewed in the United States on May 26, 2026
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Blair
Pawtucket, US
★★★★★ 5
Such a cute book
Format: Paperback
I love this coloring book. I love how cute the scenes are and that they’re all unique. Very fun and relaxing to do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

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