SKU: 48146741563

JB4 Tuner for S63 F9x M5/M8/X5M/X6M

$404.55 $449.50
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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11

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Description

JB4 Tuner for S63 F9x M5/M8/X5M/X6MPower gains of up to 80 wheel horsepower on pump gas and up to 150 wheel horsepower on race gas on a stock vehicle without the risks of flashing! The M JB4 takes everything that is great about the all wheel drive F9x M5 & M8 platform and amps it up to the next level. Power gains of up to 80whp and 100wtq bring the car to life allowing 1 4 mile potential deep into the 10s. Unlike other generic tuning devices, the JB4 includes full CANbus integration

Power gains of up to 80 wheel horsepower on pump gas and up to 150 wheel horsepower on race gas on a stock vehicle without the risks of flashing!

The ///M JB4 takes everything that is great about the all-wheel-drive F9x M5 & M8 platform and amps it up to the next level. Power gains of up to 80whp and 100wtq bring the car to life allowing 1/4 mile potential deep into the 10s. Unlike other generic tuning devices, the JB4 includes full CANbus integration via the OBDII port for advanced tuning, safety features, and diagnostics, as well as electronic wastegate control for superior boost targeting. This is simply the best tuning box available for your //M. 

Installation is fully reversible attaching to the TMAP sensors and OBDII port. The included electronic wastegate (EWG) wires are optional and allow the JB4 to take direct control of the wastegates for more precise boost targeting for higher boost maps. Firmware update loaded via JB4 Mobile or a BMS Data Cable will be provided free of charge as we expand the JB4's performance, maps, and features with future development.

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.

BLUETOOTH MODULE IS NOT INCLUDED

JB4 Features & Benefits

• Power gains of up to 80hp and 100tq to the wheels on a stock vehicle
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom 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 40 gauges/engine parameters in real-time with the JB4 app.
• Boost by gear in 1st, 2nd, and 3rd can be controlled via the JB4 app for a perfect launch
• Compatible with JB4 Mobile 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
• Includes the rugged JB4 billet aluminum enclosure for protection
• Made in the USA
• Free USA Shipping
• 5 year warranty

 

 

Vehicle Fitment

M5 
• 2018-Present S63 BMW F90 M5, M5 Competition, and CS

 

M8 
• 2020-Present S63 BMW F92 M8 Coupe and M8 Competition 
• 2020-Present S63 BMW F93 M8 Gran Coupe
• 2020-Present S63 BMW F91 M8 Convertible

X Series
• 2020-2023 S63 BMW F95 X5M and X5M Competition 
• 2020-2023 S63 BMW F96 X6M and X6M Competition

 

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.

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: 48146741563

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Ms.S.Butta
Battle Creek, US
★★★★★ 1
NOt good... not great... horrible
Set name: Sublimation Printer
I’m thoroughly disappointed with the Brother Sublimation Printer and would not recommend it. Out of the box, the setup process was more complex than anticipated, with unclear instructions and frequent errors. The print quality was inconsistent, with colors often coming out dull or inaccurate, despite multiple attempts at calibration. I experienced frequent paper jams, which disrupted my workflow and wasted a lot of materials. The printer’s software is buggy and doesn’t integrate well with other design programs, making it frustrating to use. The connectivity options were unreliable, causing frequent disconnections and delays. Additionally, the printer is quite noisy during operation, which can be distracting and bothersome. The build quality feels flimsy and not as durable as I expected. The customer support experience was also poor, with slow response times and unhelpful solutions. I faced issues with ink usage, as the cartridges seemed to run out quickly, leading to higher operational costs. The sublimation prints didn’t have the sharp, vibrant quality I was hoping for, making my final products look less professional. The lack of clear troubleshooting guides added to the frustration. The printer’s design is bulky and takes up more space than I anticipated. Overall, this Brother Sublimation Printer has been a letdown in terms of performance, reliability, and ease of use. I regret investing in this product and would advise looking for alternatives.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 9, 2024
R
Verified Purchase
Roy Adorjan
Birmingham, US
★★★★★ 4
Pretty good for the price.
Set name: Sublimation Printer
So far so good. I have been producing a fair amount of items to date. My only wish was that the colors were more vibrant with this printer and it's ink.
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Reviewed in the United States on October 27, 2025
T
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Tom B
Waukegan, US
★★★★★ 5
Inkjets have come a long way
Pattern Name: Printer, Style: ET-15000
Just a lot to like about this printer and nothing I don't like. Very capable for the price. I do mostly black and white printing, rarely print photos. (This will supposedly do a credible job of photo printing too but I haven't tried it). If you want professional caliber photo printing, you probably want the Epson 8550 which is similar to this, a bit more expensive, but does 6 color printing. If you are doing more like every day business printing the 15000 might be a better choice because it's built more for speed. The tank system means I can just replace the black because I use it a lot. The black ink tank is double size of the others and based on my experience so far, I think I'll easily get over a thousand pages on the standard-vivid setting which is very strong black but still relatively high speed printing. Given that the black ink bottles are under $30 I think the cost per page will be comparable to laser. The booklet/pamphlet printing can be complicated to work out with layers of PDF software and the Epson printer driver. But once you work it through, it's super capable. I've printed a lot of 12 x 18 double-sided for booklets and the paper handling has been flawless. (It can duplex automatically for 8 1/2 x 11 but for other sizes you have to manually duplex, which you can do by printing back/front or even/odd.) It's not as fast as a laser printer but it's pretty fast -- inkjets have improved so much.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
L
Verified Purchase
Loleta Harlan
San Leandro, US
★★★★★ 5
Perfect Printer for My Small Business
Pattern Name: Printer, Style: ET-15000
I purchased the Epson ET-15000 for my crafting and apparel business and have been very pleased with its performance. The print quality is excellent, colors are vibrant, and the large ink tanks help save money over time. It handles larger print sizes with ease and has become an essential part of my workspace.
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Reviewed in the United States on June 3, 2026
W
Verified Purchase
wwise
Natrona Heights, US
★★★★★ 5
Nice large format printer which is what I needed
Pattern Name: Printer, Style: ET-15000
I make stained glass panels and needed a printer that I could make larger copies with. I also wanted one that I could manipulate my images with. This was my best option and I love the Eco-Tank printers. After reading the reviews I made sure to add a couple years of additional warranty for my peace of mind. Finding 13 x 19 paper that was affordable was a tough challenge. I found a bunch on FB marketplace and bought everything they had to offer. This printer was very easy to set-up. I just followed the instructions and then followed what was on my computer screen. At first I thought I would have an issue connecting to Wi-Fi but when it failed on the computer, I was able to go to the printer and do it from the control panel - Easy peesey. I have used it several times since filling, charging, and installing and everything works as it should. My husband has an Eco-Tank printer and I've wanted one since he got his. I love that the ink will last a very long time and that it will be cost efficient. I am not overly interested in photo printing so this was the perfect choice for my needs. The print quality is fairly good when comparing it to my old Canon and e that there are several paper trays and ways to make copies, especially the automatic feed and the larger scanner bed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 26, 2026

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