SKU: 47988044189

Group 8: JB4 Tuner Gen3B

Sale price$216.90 Regular price$241.00
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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5

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Description

Group 8: JB4 Tuner Gen3BTrue Plug & Play Tuning JB4 Group 8 The JB4 is a plug and play Audi tuner that plugs into easy access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 800 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and powerful performance. Minimum power gains of

True Plug & Play Tuning

JB4 Group 8

The JB4 is a plug and play Audi tuner that plugs into easy access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. It features a 64mhz processor allowing sensors to be sampled 800 times per second using dedicated 10 bit digital to analog converters, ensuring smooth and powerful performance.  Minimum power gains of 30whp and 45ft lb on 91AKI/95Ron

Unlike other tuning systems the JB4 includes a fully programmable CANbus system, at home upgradable firmware, and data logging capability. CANbus allows the JB4 to access engine data to take into account pedal input, throttle position, gear, engine speed, air/fuel ratio, fuel trims, ignition advance, knock, and many other factors and incorporate those into the performance mapping. It can also read/delete fault codes, incorporate unique safety features such as keeping boost pressure low until oil and water is up to temperature to provide proper engine and turbo lucubration and drop to a low boost map if the engine starts to overheat, run lean, excessively knock, or over boost.

The default JB4 map1 runs 3psi over stock peak and tuned maps including stock and valet mode can be selected on the fly using a BMS diagnostics cable or JB4 mobile smartphone adapter.  
Installation is very discrete and it quickly removes without a trace when needed. Fuel economy during normal driving is unchanged. Compatible with all driving modes. Made in USA. 5 year warranty.

Further information can be found at our discussion forum here: 

https://www.n54tech.com/forums/showthread.php?t=55309

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. Separate JB4 Mobile app purchase also required.

JB4 Features & Benefits

• Minimum power gains of up to 30hp and 45tq to the wheels on a stock vehicle
• 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

For any VW/Audi sales, support, and technical questions please contact George at [email protected] George is the only BMS representative familiar with the VW/Audi platform.

APPLICATIONS

• Audi 8V A3 2.0T 184hp
• Audi B9 A4 2.0T 190hp
• Audi B9 A5 2.0T 190hp
• Skoda Kodiaq 2.0T 180hp

• Seat Ateca 20T 190hp
• VW Aerton 2.0T 190hp
• VW Tiguan 2.0T North American
• VW Tiguan 2.0T 140kw/184hp
• VW T-Roc N1 2.0T 184hp
• VW Passat 2.0T North American 174hp
• VW Polo GTI 2.0T 200hp


INSTALL GUIDE / JB4 APP

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: 47988044189

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hurricane james
Whiting, US
★★★★★ 4
worth it for the price
Color: Pink, Style: 1/2 Inch, Color: Pink, Style: 1/2 Inch
i got the pink and it’s a super cute color in person! came with the strap which was nice too. thick and comfy - not sure how durable it is, as i just recently purchased it. only thing was the smell after taking it out of the box. very chemically scent but only lasted about a day. overall i love it and hope it holds up!
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Reviewed in the United States on May 12, 2026
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Pam Burleson
Belleville, US
★★★★★ 5
Great product
Color: Black, Style: 1/2 Inch
Nice yoga mat. Perfect thickness for me. Love that I can roll it up and put it out of the way. Gives great knee support and the material is comfortable.
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Reviewed in the United States on May 6, 2026
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terrydodson
Houston, US
★★★★★ 5
For the price it’s a really good yoga Matt
Color: Blue, Style: 1/2 Inch
For the price it’s not bad. I use for multiple things, not just yoga, it’s nice and thick I used it to lay on the floor and fix my table and gaming chair and to get under hard to reach places when I don’t want lay directly on the floor. it’s soft enough not to hurt my back very well put together strong material.
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Reviewed in the United States on March 28, 2026
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Danny B.
Cuba, US
★★★★★ 5
This is a nice mat for floor exercises.
Color: Aqua, Style: 1-Inch
I had some lower back issues and went to physical therapy. I used this mat for my floor stretches and exercises at home along with my big rubber ball. It made the floor work so much more comfortable. Beware of the smell. When I unroll it I still smell that “memory foam” odor, which takes some getting used to. I aired it out as instructed, twice, and it persists. It’s a wonderful mat so the odor is not a deal breaker. I’d buy it again.
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Reviewed in the United States on April 26, 2026
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Karla Lara
Boise, US
★★★★★ 5
Maximum joint comfort and durability
Color: Pink, Style: 1/2 Inch
I absolutely loved the color, and it offers incredible cushioning without sacrificing stability during balance poses. It is dense, doesn't lose its shape, and springs back instantly. The materials are high-quality, and it doesn't have that strong plastic smell that others often have. It is worth every penny for the comfort it provides.
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Reviewed in the United States on April 26, 2026

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