SKU: 46454953812

Group 16: JB4 Tuner for Audi EA888 Gen4 2.0 TFSI 261hp & 265hp

Sale price$239.40 Regular price$266.00
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20

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Description

Group 16: JB4 Tuner for Audi EA888 Gen4 2.0 TFSI 261hp & 265hpGroup 16: JB4 Tuner for Audi EA888 Gen4 2. 0 TFSI 261hp & 265hp The JB4 is a true user adjustable plug and play performance tuner for all EA888 Gen4 based models in the Audi Group range with electric assist. The JB4 features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water meth control, and

Group 16: JB4 Tuner for Audi EA888 Gen4 2.0 TFSI 261hp & 265hp

The JB4 is a true user adjustable plug and play performance tuner for all EA888 Gen4 based models in the Audi Group range with electric assist.

The JB4 features CANbus connectivity for more advanced tuning, direct AFR control, advanced safety systems for boost, air/fuel ratio, fuel trims, and engine knock, boost mapping by gear for improved traction, integrated water/meth control, and much more.

The unit can be used with our JB4 Bluetooth Connect kit providing for full in-car engine parameter display, map switching, and adjustment.

The JB4 is a true user adjustable plug and play performance tuner for all 261hp 4 cylinders from the VAG group. Power Gains: Starting at 50bhp and 70ft-lb with 91 octane/95Ron with + 4.0psi boost over stock on the default setting with no further mapping. Up to 75bhp and 90ft-lb with bolt-on modifications, higher octane, and boost adjustment with the optional Data Cable or Smart Phone Wireless connect kit 

For more detailed information and user discussion visit:  https://www.n54tech.com/forums/showthread.php?t=50428

Wirelessly connect the JB4 to your Bluetooth 4.0 compatible iOS and Android device via the JB4 Mobile connect kit, or to your Windows laptop with the BMS data cable. Both options allow 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. A separate JB4 Mobile app purchase is also required.

JB4 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
• Free USA Shipping
• 5 year warranty


Applications:

2021+ Audi B9.5 A4/5 45TFSI
2021+ Audi B9.5 Q5 45TFSI
2021+ Audi C8 A6 261hp
2021+ Audi C8 A7 261hp
2021+ Porsche Macan

 

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.






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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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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]
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SKU: 46454953812

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★★★★★ 5
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I needed something fast for a chicken and dumplings recipe. Everything in store was outrageously expensive for the size I needed. Got on amazon and found this guy. Nice and large and build quality is excellent. Zero imperfections in the enamel. Heats evenly and is a dream to cook in, nothing sticks easy cleaning. For the price (about 50% less then anything in store) was an absolute deal. Highly recommended. Just a heads up tho...this thing is heavy. I dont think its heavier then a similar sized enamel cast iron dutch oven tho.
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Reviewed in the United States on April 11, 2026
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Diane Dobry
San Leandro, US
★★★★★ 5
My big red bread and soup pot is just what I needed
Color: Red
Sturdy, heavy duty, nice sized Dutch oven. Good for baking bread , making soup, and a large casserole. Good quality, nice color
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Reviewed in the United States on May 24, 2026
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Fidel Farm
Boise, US
★★★★★ 5
Great value and great quality
Color: Cream White
Excellent heavy-duty quality and it looks great sitting out on my stovetop. I've prepared several meals plus baked bread in the oven in this and it's easy to clean and holding up really well. Very reasonably priced too!
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Reviewed in the United States on March 25, 2026
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Charli
Birmingham, US
★★★★★ 5
Love this Dutch oven!
Color: Grey
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Jeremiah B.
Port Orchard, US
★★★★★ 5
Nice Cast Iron Dutch Oven
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This cast iron dutch oven is spacious and effective. Nice looking, and it is easy to clean as they claim.
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