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 20 - Jul 25

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For Your Every Summer RSVP, with Code: SUMMER15

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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4.2 ★★★★★
Based on 9 reviews
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C
Verified Purchase
Chelsey
Alexandria, US
★★★★★ 5
Good~~!!
Great shirts! ^_^ no flaws
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2025
L
Verified Purchase
Liz Newman
Fort Morgan, US
★★★★★ 5
Comfortable and cool. Does not ride up.
Color: 01-multicolour (4-pack), Size: Medium
Extremely comfortable. Stays cool. Ample coverage. Quality material. They do not creep up. I ordered a medium which I generally take a size small. I have reordered and will reorder again to add more colors to my collection.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
J
Verified Purchase
Janola
West Palm Beach, US
★★★★★ 5
Great Value for Cool Thigh Protection
Color: 02-multicolour (4-pack), Size: XX-Large
For the price, I'm not sure there are better women's boxer shortlettes anywhere. I've tried more expensive brands, and for quality and cooling, these are right up there. I have other bamboo viscose undies that still get gross when I get sweaty in the summer, but these, with the large mesh panel, really help wick away a lot of that moisture, keeping you feeling dryer and cooler. I find that the leg openings are comfortable and don't roll up! and the waist band doesn't dig, nor does it roll down. These do not provide any compression, and I wasn't looking for any. I just wanted some cooling, thigh protecting women's boxers that wouldn't break the bank. These are them! Bonus- I've washed them and put them in the dryer (following their instructions), and they haven't shrunk; they look about the same and are nice and soft.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 28, 2025
R
Verified Purchase
Reviewer
Los Angeles, US
★★★★★ 4
Great for the entire family but expensive
So far so good. The brand of boxers we had been buying changed their style and construction so we needed to find an alternative. These have held up well so far to multiple weeks of frequent washing and wearing from the entire family. We did size up from the usual 6/M we normally buy and ordered large to prevent the legs from rolling up which worked out great. Our daughter likes the length and how soft the fabric is for wearing under skirts and gym shorts and liners stay put without moving or leaking as another reviewer mentioned. Our son says they are comfortable and fit well being just supportive enough without being constrictive. We all agree that there seems to be not enough fabric in the back as they tend to be much tighter across the backside than the front and that also causes the waist band to ride lower in the back than the front. These have better seam placement than some brands we tried with no seam across the lady bits and no seam down the middle of the back side so they are more much comfortable but the cost is also much higher and that is why we're only giving it 4 stars. These will stay in the rotation until we find something cheaper that both us and the kids like.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
B
Verified Purchase
Brittany
Grantham, US
★★★★★ 5
Pregnant lady review! Soft, comfortable, cool.
Color: 03-multicolour (4-pack), Size: Large
So soft, comfortable and cool. I'm pregnant and I've gained weight in my legs. I love wearing dresses but my thighs were rubbing together too much. These are perfect to wear under dresses. I also wear them under my bibs at work and it keeps me from getting overheated but I don't have to worry about whether or not my underwear show since they just look like shorts. I wish these came in maternity. I just keep them below my belly. I'll be buying more for sure.
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Reviewed in the United States on April 8, 2026

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