SKU: 47988044189

Group 8: JB4 Tuner Gen3B

Sale price$216.90 Regular price$241.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 2478 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Bust-a-knot charters
Omaha, US
★★★★★ 5
Good item
Color: Black, Size: 48"W x 12"D, 1 Pack
Heavy-duty and looks clean once mounted. Plenty of space for storage or display. Installation was straightforward and it holds weight well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 22, 2026
D
Verified Purchase
Don
Alexandria, US
★★★★★ 5
Great quality for the price point
Color: Walnut, Size: 48"W x 12"D, 1 Pack
Great quality for the price. Not sure why they include drywall anchors? You need to put the holding bracket into the studs. Otherwise, it will feel wobbly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 20, 2026
S
Verified Purchase
Sharon
Los Angeles, US
★★★★★ 5
Floating shelves
Color: Oak, Size: 36"W x 12"D, 1 Pack
Very happy with my purchase. Looks great in my kitchen
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
S
Verified Purchase
Sara Cortez
Pawtucket, US
★★★★★ 1
Metal bracket is cheap and bends easily
Color: White, Size: 36"W x 12"D, 1 Pack
Worst shelf I have ever purchased. Waisted my money, do not waist yours. Installed with the anchors the shelf came with and it did not hold the shelf at all. This happened with nothing on the shelf, just trying to install with the directions given. The entire metal bracket bent and now the shelf is completely useless. IKEA would have been a better option. So disappointing
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
L
Verified Purchase
Lugangirl
Lowell, US
★★★★★ 4
Looks good.
Color: Walnut, Size: 36"W x 12"D, 2 Pack
They look nice. Easy to mount. The level is garbage…throw it away. Pretty light weight. The stability is good as long as the heavier stuff is placed close to the back of the shelf. It price is to high for this product. Take about $30 off and it would be a reasonable price for the product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 2, 2026

recommand products