SKU: 22575689023

S68 JB4 Tuner for 2023+ BMW XM & 2024+ BMW X5M / X6M

Sale price$468.90 Regular price$521.00
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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21

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Description

S68 JB4 Tuner for 2023+ BMW XM & 2024+ BMW X5M / X6MGains are 125whp on pump gas and up to 260whp on higher octane or E85 mixtures. The ultimate tune for your 4. 4L S68 powered BMW XM, X5M, & X6M. 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

Gains are 125whp on pump gas and up to 260whp on higher octane or E85 mixtures.

The ultimate tune for your 4.4L S68 powered BMW XM, X5M, & X6M. 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 S68 engine.

For the latest S68 performance results, updates, firmware, and map guide, be sure to visit https://www.jb4tech.com/forum/model-specific-engine-tuning-modification-discussion/m/822883-jb4-for-new-bmw-s68-hybrid-dyno-testing#post822883

Wirelessly connect the S68 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 S68 XM 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.

S68 ///M JB4 FEATURES & BENEFITS

• Gains are 125whp on pump gas and up to 260whp on higher octane or E85 mixtures.
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom S68 ///M 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

BMW X5M

• 2024+ S68 F95 BMW X5M LCI 4.4L

BMW X6M

• 2024+ S68 F96 BMW X6M LCI 4.4L

BMW XM
• 2023+ S68 G09 BMW XM 4.4L
• 2024+ S68 G09 BMW XM LABEL 4.4L

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.

If your looking for S68 tuning for your BMW XM or X5,X7 M60i, or 7 Series M60e the JB4 is a perfect S68 engine tune.


JB4 Tuned 2023 BMW XM DYNO - STOCK (baseline) vs JB4

2023 BMW XM Dragy 0-60 MPH & 1/4 Mile times - JB4 MAP 5 + MS109.

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: 22575689023

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Heather T.
Omaha, US
★★★★★ 1
Too tight at opening
Size: 13 Little Kid, Color: Light Pink
I bought a size larger for my child, and the foot won’t go in. Her other sketchers slides are great. But I do not recommend this model.
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So good!
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As always sketchers give her great support nd comfort while being cute and easy on off! Slip resistant, breathable and size is spot on and super durable wash great and dry quick
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Boise, US
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Fantastic, stylish, and easy shoes!
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My daughter LOVES these and wears them daily. She says they're really comfy and they slip on easily. They've held up for several months of daily wear so far and are still going strong!
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Janis H.
Chelsea, US
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Great shoes
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These shoes are awesome! Have good arch support and very comfortable
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Reviewed in the United States on May 12, 2026
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Natrona Heights, US
★★★★★ 5
Awesome shoes!
Size: 4 Big Kid, Color: Aqua/Multi
My daughter is SUPER picky about shoes and loves these. They are easy and quick to put on, run true to size, and most important COMFORTABLE. She is outgrowing them and will have to get her the next size up. Highly recommend for picky kids
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