SKU: 59384299758

S58 JB4 Tuner for BMW G80 M3, G82 G83 M4, G87 M2 - Burger Tuning

Sale price$276.75 Regular price$307.50
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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15

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Description

S58 JB4 Tuner for BMW G80 M3, G82 G83 M4, G87 M2 - Burger TuningGains are 80whp 100wtq on pump gas and up to 150whp 175tq on higher octane or E85 mixtures. The ultimate tune for your S58 powered G87 M2, G80 M3, or G82 M4, the JB4 allows you to go from factory stock to full race and everywhere in between. The JB4 installs and removes easily and includes many unique features not found in any other tune, including user adjustable 1st and 2nd gear boost limiting, smartphone integration, electronic wastegate control,

Gains are 80whp/100wtq on pump gas and up to 150whp/175tq on higher octane or E85 mixtures.

The ultimate tune for your S58 powered G87 M2, G80 M3, or G82 M4, the JB4 allows you to go from factory stock to full race and everywhere in between. The JB4 installs and removes easily and includes many unique features not found in any other tune, including user-adjustable 1st and 2nd gear boost limiting, smartphone integration, electronic wastegate control, ethanol fuel support, and built-in advanced CANbus-based diagnostic tools. Installation is easy and completely removable with no splicing or cutting of factory wires making the JB4 an excellent choice for your S58 engine.

Also available with our new JB4PRO board which includes built in Bluetooth, fuel pressure control for more advanced tuning with ethanol mixtures, built in flex fuel/port injection/WMI control using our PNP add on harness, onboard data-logging memory, and many additional features to be unlocked in the future via free firmware updates.

  • Optional: For Extra Ordinary Performance with Jb4 We also recommend Our S58 Downpipe

Includes the JB4PRO app! Wirelessly connect the JB4 to your iOS or Android device 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.

The JB4PRO 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. More information on the JB4PRO app is available here.

S58 JB4 FEATURES & BENEFITS

• Gains are 80whp/100wtq on pump gas and up to 150whp/175wtq on higher octane or E85 mixtures.
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom S58 JB4 tuning software and up to 8 maps for various fuel and modification levels
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• View and record up to 20 different gauges/engine parameters in real-time with the JB4PRO app.
• Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4PRO app for a perfect launch
 Compatible with the FREE JB4PRO app 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
 Designed and assembled in the USA
• 5 year warranty

S58 JB4 Vehicle Fitment

  • 2023-Present S58 G87 BMW M2
  • 2021-Present S58 G80 BMW M3
  • 2021-Present S58 G80 BMW M3 Competition
  • 2021-Present S58 G82 BMW M4
  • 2021-Present S58 G82 BMW M4 Competition
  • 2023-Present S58 G82 BMW M4 CSL
  • 2022-Present S58 G83 BMW M4 Convertible  

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 and manipulates vehicle performance through these connections making your vehicle much faster. The JB4 separates itself from the competition with more advanced connection points and processing, including CANbus, fuel & spark control, Bluetooth connectivity, and a variety of innovative and advanced features. The system is not VIN-locked and can quickly be removed, swapped between cars, or resold later.

Is the JB4 a real tune?

Yes. By tapping into specific sensors and CANbus for real-time vehicle data the JB4 can alter boost, timing, AFR, and fuel trims similar to an ECU reflash, while retaining factory safety systems and without unlocking or flagging the ECU.

 

G80 M3 JB4 tuned 1/4 mile (stock turbos)


G80 M3 JB4 tuned 1/4 mile (stock turbos)

DYNO



 

G80 M3 JB4 Dyno, 30% E85 fuel, JB4, BMS S58 Intake



2024 G87 BMW M2 Dyno Results

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: 59384299758

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4.5 ★★★★★
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Product Reviews
C
Verified Purchase
Customer
Phoenix, US
★★★★★ 4
Nice Finish, Decent Fit
Size: 2002-2005 E46
The fitment isn't perfect like the OEM grilles, but overall I was satisfied. These are just slightly smaller than the originals so there is a little play once installed. No need to modify the LH side grille for clearance to the hood latch though as other reviews mention. It looks like the design has been revised to address that problem. I was impressed with the paint finish and there weren't any noticeable blemishes like dust or dirt in the paint. These are probably the best and cheapest gloss black kidney grilles for E46 that are currently available. OEM grilles w/ gloss black are basically discontinued so we're all stuck with aftermarket if you want the gloss black shadowline look.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2019
S
Verified Purchase
Steven J.
Massapequa, US
★★★★★ 5
loose fitment
Size: 2002-2005 E46
I guess it's a hit or miss with this. You either get perfect fitment or poor fitment like I did, after the install it's very loose.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 3, 2020
E
Verified Purchase
Erik
Port Orchard, US
★★★★★ 1
Awful fitment, poor quality
Size: 2002-2005 E46
Although not oem quality was expected, but I never thought to throw them away either. Grills look very nice, outside quality is good. Unfortunately the grills do not fit to its place and slip just after you close the hood. After several tries to make them stay in place I have broken 2 clamps. Finally I have removed these grills and went on with OEM ones. Also, pay attention that you must drill a space for hood lock on the inner side (driver side grill does not have the factory space for hood lock handle).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2020
B
Verified Purchase
Brandon
Houston, US
★★★★★ 3
Cheap but works
Size: 2002-2005 E46
Why did you pick this product vs others?: These are cheap, but work. They don’t snap in well and don’t fit the edges perfectly. That being said, they’re cheap and fill the hole if your grill is broken or missing. 
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Reviewed in the United States on June 29, 2025
A
Verified Purchase
Antonio quintanilla
Fort Morgan, US
★★★★★ 5
Fit perfect
Size: 2002-2005 E46, Size: 2002-2005 E46
Changes the look completely on the car majority of the chrome trim is now black
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2023

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