SKU: 66823435455

JB4 Tuner for 2017+ Audi S4, S5, SQ5, RS4, RS5, A6, A7, Q7, Q8 (3.0T Only) - Burger Tuning

Sale price$260.55 Regular price$289.50
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  • CAN

Ships within 48 hours · Estimated delivery Sep 18 - Sep 23

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Description

JB4 Tuner for 2017+ Audi S4, S5, SQ5, RS4, RS5, A6, A7, Q7, Q8 (3.0T Only) - Burger TuningThe JB4 is an easy to install plug and play tuner that attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance and reduced turbo lag. Includes full SENT sensor technology required for properly tuning the latest Audi platforms. Includes full CANbus allowing the JB4 to access and incorporate all engine data in it's tuning strategies, incorporate unique safety features such

The JB4 is an easy to install plug and play tuner that attaches to sensors in the engine bay and works with your factory ECU tuning to remap boost, timing, and fueling for optimal performance and reduced turbo lag. Includes full SENT sensor technology required for properly tuning the latest Audi platforms. Includes full CANbus allowing the JB4 to access and incorporate all engine data in it's tuning strategies, incorporate unique safety features such as keeping boost pressure low until oil and water is up to temperature to provide proper engine and turbo lubrication and drop to a low boost map if the engine starts to overheat, run lean, excessively knock, or over boost. Includes fuel control for ethanol mixture mapping. Fully compatible with FREE JB4PRO app for on the fly map changes, data logging, firmware updates, and much more. 

Revision 2 now includes an integrated boost control connection which can be optionally connected for higher power applications. You no longer need to purchase a separate BCM module for this!


For sharpe throttle response and extra ordinary performance buy tuner with intake

Wirelessly Connect to your JB4: Our all-new JB4 PRO smartphone connection is included 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 information about the JB4PRO mobile app click here.

For map details, updates, and to join the discussion: Click Here 


AUDI 3.0T JB4 Tuner Features & Benefits

• Improves 0-60 times and 1/4 mile times
• Preloaded with custom tuning software and up to 8 maps for various fuel and modification levels
• 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
• Compatible with JB4 Mobile for smartphone logging, tuning changes, and adjustment
• 91 octane fuel or better required for performance gains
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• Not VIN locked and can be removed without a trace and resold down the road
• Made in the USA
• 5 year warranty


Vehicle Fitment

Purchase Links For Older Models

Audi

  • 2017+ Audi B9/9.5 S4 3.0TFSI
  • 2017+ Audi B9/9.5 S5 3.0TFSI
  • 2017+ Audi B9/9.5 MK2 SQ5 3.0TFSI
  • 2017+ Audi B9/9.5 RS4
  • 2017+ Audi B9/9.5 RS5
  • 2018+ Audi C8 A6/7 3.0TFSI/55
  • 2017+ Audi Q7 3.0TFSI/55
  • 2017+ Audi Q8 3.0TFSI/55

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 its 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.

 


Dragy testing on a 100% factory S4 with JB4 and 30% E85 fuel.




Customer dragy testing with JB4, 93 octane, and a few bolt-on mods


VIDEO


Customer provided Audi B9 S4 race video showing JB4 in action



  

 

 


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: 66823435455

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Amazon Customer
Charlottesville, US
★★★★★ 5
👍🏼👍🏼
Color: Blue
Great product! I really like this item I would definitely recommend it to get the job done !
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Reviewed in the United States on March 25, 2026
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White Zombie
Chelsea, US
★★★★★ 5
Perfect fit.
Size: 1" x 1" x 1"
Fits perfect in a 2025 Toyota Tacoma high quality good performance.
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Reviewed in the United States on May 10, 2026
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Verified Purchase
Sam
Birmingham, US
★★★★★ 5
Better Than OEM – Worth the Upgrade
Size: 1" x 1" x 1"
The K&N filter is a big step up from the standard Toyota air filters and OEM replacements. Installation was quick and easy, and the fit is perfect. I’ve noticed smoother airflow and better throttle response compared to the stock filter. The best part is that it’s washable and reusable, so it’s a long-term investment instead of constantly buying replacements. Definitely a smarter choice for anyone who wants performance and value over the typical paper filters.
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Reviewed in the United States on August 25, 2025
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Amazon Customer
Pawtucket, US
★★★★★ 5
Fits 2024 Land Cruiser 1958
Size: 1" x 1" x 1"
Easy to install. Perfect fit.
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Reviewed in the United States on May 3, 2026
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K
West Palm Beach, US
★★★★★ 5
Does the job, economical and a perfect fit
Size: 1" x 1" x 1"
Bought exactly 1 year ago for 3rd Gen Tundra. So far, it really does the job. At first I didn’t realize how awesome it was until I had to remove and clean it yesterday. Although I keep my truck immaculate inside and out, after 1 years use, the filter had become extremely filthy and the air had an old mildew, vomit, stank smell. When clean and set for fresh air, I can only faintly notice diesel exhaust smells from those in front of me. I also notice little to no dust accumulation on my dash and flat surfaces. In my opinion the K&N cabin filter kit is an essential tool for cleaning this filter. K&N made the filter, so I would imagine that they know how to clean and refresh it properly. By the way, refresh solution is nearly fragrance free. I bought the refresh kit at a big box auto supply and it came in a mostly black box instead of the white box as sold on here. Don’t know if that means the formulation has changed or not.
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Reviewed in the United States on March 2, 2025

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