SKU: 65842213723

JB4 TUNING for 2018+ Jeep Wrangler/Cherokee 2.0L (with bluetooth connection)

$288.43 $320.48
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Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

JB4 TUNING for 2018+ Jeep Wrangler/Cherokee 2.0L (with bluetooth connection)THIS INCLUDES THE WIRELESS ADD ON CONNECTION, PLEASE BE AWARE TO USE WIRELESS BLUETOOTH FUNCTION YOU WILL NEED TO PAY AND DOWNLOAD THE APP. FEATURES AND BENEFITS Power gains of up to 40hp to the wheels on a stock vehicle Improves 0 60 times and 1 4 mile times Quick Plug & Play Installation CANbus integration offering unrivaled tuning features and performance Runs as smoothly as stock, this is how your Jeep should have come from the factory Compatible

THIS INCLUDES THE WIRELESS ADD-ON CONNECTION, PLEASE BE AWARE TO USE WIRELESS BLUETOOTH FUNCTION YOU WILL NEED TO PAY AND DOWNLOAD THE APP.

 

FEATURES AND BENEFITS


• Power gains of up to 40hp to the wheels on a stock vehicle
• Improves 0-60 times and 1/4 mile times
• Quick Plug & Play Installation 
• CANbus integration offering unrivaled tuning features and performance
• Runs as smoothly as stock, this is how your Jeep 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
• Ethanol (E85) compatible tuning maps
• Able to read/delete fault codes
• Not VIN locked, can be removed without a trace and resold down the road
• Made in the USA
• 5 year warranty

 

Power gains of up to 40hp to the wheels on a stock vehicle

The JB4 is the most advanced and highly featured tuning system available for your 2018+ Jeep Wrangler/ Cherokee 2.0L 4 cylinder Turbo. Power gains are up to 40hp to the wheels (55hp crank) on a completely stock car on pump gas, gains with bolt on parts, higher octane, and larger turbos are even higher.

The JB4 features a simple plug and play installation harness for easy installation & removal and includes many features not found with any other tune. Including on the fly in dash map switching between factory and various performance maps, boost limiting by gear for improved traction in lower gears, progressive water/methanol support, built in data logging, built in code reading, and much more. 
 

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.

 

APPLICATIONS

• 2018+ Jeep Wrangler 2.0L
• 2018+ Jeep Cherokee 2.0L

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: 65842213723

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4.6 ★★★★★
Based on 11 reviews
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Product Reviews
J
Verified Purchase
Jaden T Wilson
Carnegie, US
★★★★★ 5
Solid
Style: KIT
Waterproof, great for field exercises
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
T
Verified Purchase
teddy
Whiting, US
★★★★★ 4
Nice quality but could be better for the price.
Style: COVER
So nice quality but strange dimensions. There is no way to fold a standard 8.5x11" sheet of computer paper to fit neatly in this. So if you want to print out your own documents to take with you in this, this isn't ideal. Has 2 internal pen slots and one on the outside. Has two business card slots but I wish it had more.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 21, 2026
R
Verified Purchase
Runner Chick
Houston, US
★★★★★ 5
Pen Holder is Very Narrow
Style: COVER
Overall this item is effective for holding a Rite in the Rain 4.625" x 7" spiral side-bound notebook. There is no zipper on this so it does not seal. It has slots for a few cards and folded or smaller items can be tucked behind the notebook in the pockets that hold the covers. I haven't used it in the rain enough yet to know if those papers I have tucked in will stay dry. The description says a cell phone could be stored in those pockets as well. I haven't tried this, but my cell phone with a cover wouldn't fit. If you have a thin cell phone it might work, but I prefer to put both covers slid into the pockets so the notebook stays open easier when using it. The outer elastic closure is tight enough without being too tight. However, the pen holders are quite tight and small. They likely work well to hold in the Rite in the Rain pen that is narrow and smooth and possibly a narrow and smooth mechanical pencil, but they are too tight for my side click mechanical pencil. I could barely slide it in and when I tried to pull it out, the top half pulled off the bottom half of the pencil. It would also be a struggle to put larger pens in and out, but the elastic might stretch to fit those that are smooth over time. Despite not being able to use the loops for my preferred pencil, I chose to keep it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 23, 2025
M
Verified Purchase
MAK
Fort Morgan, US
★★★★★ 5
Just what I was wanting
Style: KIT
Ordered to use a a gym notebook to track my progress. It’s holding up well being exposed to being shoved in a cramped gym bag repeatedly over the last 2 months. Sweat and water hasn’t hurt it and the cover seems to be holding up well. Still looks practically brand new.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
A
Verified Purchase
a plant nursery
Louisville, US
★★★★★ 5
Good notebook kit
Style: KIT
Good little notebook, I use it in the field(plant nursery) daily. The pencil is ok, just a little thick…pause. But other than that, recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 6, 2025

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