SKU: 4090352389

JB4 Tuner For Alfa Romeo 2017+ Giulia & Stelvio 2.0L - Burger Tuning

Sale price$269.55 Regular price$299.50
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

JB4 Tuner For Alfa Romeo 2017+ Giulia & Stelvio 2.0L - Burger TuningPower gains of up to 40hp to the wheels on a stock vehicle The JB4 tuner is the most advanced and highly featured tuning system available for your 2017+ Alfa Romeo Giulia or Stelvio 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. This Alfa Romeo Giulia Tuner & Alfa Romeo Stelvio Tuner features a simple plug &

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

The JB4 tuner is the most advanced and highly featured tuning system available for your 2017+ Alfa Romeo Giulia or Stelvio 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.

This Alfa Romeo Giulia Tuner & Alfa Romeo Stelvio Tuner features a simple plug & play harness for easy installation & removal and includes many features not found with any other tune. Including on the fly map switching from your phone/tablet instead 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. 
 
The JB4 Performance Tuner also does not require any user setup or customization but for those who are interested in logging, adding new features as we post them, etc., we suggest the BMS DATA cable or REV3 mobile phone adapter. 

Wirelessly Connect to your JB4: Grab our all-new JB4 PRO smartphone connection to wirelessly connect the JB4 BMW tuner to your Bluetooth 4.0 compatible iOS or Android device. This option allows 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. Our new adapter fits fully inside the JB4 enclosure for enhanced weather protection and a more streamlined look. The JB4PRO Free 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. For more info on how to use the JB4PRO free app click here.

Alfa Romeo JB4 Features & Benefits


• Power gains of up to 40hp to the wheels on a stock vehicle
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom JB4 Alfa Romeo 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 different 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
• 5-year warranty

Vehicle Fitment

• 2017+ Alfa Romeo Giulia 2.0L 4 cylinder Turbo
• 2017+ Alfa Romeo Stelvio 2.0L 4 cylinder Turbo

More Info

For the install guide, map guide, and the latest firmware click here.


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 the 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 and is sold in over 67 countries worldwide.

Is the JB4 a real tune?

Yes the JB4 is a real tune. By tapping into specific sensors and CANbus for real time vehicle data the JB4 is able to alter your boost, timing, AFR, and/or fuel trims, to a similar degree an ECU reflash would, but without the vehicle ever knowing its been tuned. The result is safe, smooth, and significant power and torque gains while retaining your factory safety systems and without having to unlock/flag your ECU.




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: 4090352389

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 2098 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
G
Verified Purchase
gbrock
Houston, US
★★★★★ 5
Perfect Weight
Size: 72"W x 72"L (Pack of 1), Color: 1a. Clear
Is a perfect liner. It’s not super thick or heavy. Easy to hang.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
A
Verified Purchase
Andrea Santiago
Pawtucket, US
★★★★★ 5
Good shower liner
Size: 72"W x 72"L (Pack of 1), Color: 1a. Clear
Actually works! No soap scum or mildew. I have had this shower curtain up since December and all I do is rinse it off. No soap scum. Good item. Good value.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
J
Verified Purchase
JS
West Palm Beach, US
★★★★★ 4
Too lightweight and flimsy, but it does the job
Size: 72"W x 72"L (Pack of 1), Color: 1a. Clear
This shower liner works as expected, but it is a bit lightweight, and will drift around in the shower. I will look at getting a more heavy duty one in the future. This one has the 3 magnets, and that isn't enough. I would recommend getting one with double the magnets and a thicker plastic. I went cheap and regret it slightly, but at least these things are made to be disposable. Other than that, the durability seems good, and it looks and feels like you would expect, but as stated, the plastic is flimsy and flutters around. Seems fairly mold resistant vs other liners I've used from the store (like cheaper Walmart ones etc).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
S
Verified Purchase
S. Cain
Louisville, US
★★★★★ 5
Keeps clothes on!
Color: Black, Size: Pack of 30
These hangers are fantastic! They save so much closet space, keep clothes from slipping, and feel sturdy and durable. Great quality for the price and make the closet look neat and organized!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
T
Verified Purchase
Trish
Lake Worth, US
★★★★★ 5
Had to order more!
Color: Ivory/Rose Gold, Size: Pack of 50, Color: Ivory/Rose Gold, Size: Pack of 50
Such great hangers that save space and provide true non-slipping of clothing. They came in handy as I got rid of ye old plastic hangers. My closet looks so much more organized and a little bit more spacious. They are lightweight and hold up very well. I did notice some hangers had "peeling" to them but I honestly didn't care since they are doing the work they are intended for. These are pretty versatile as I even have winter jackes hanging from them. The price is aslo very good in my opinion and on par with one of the big box companies my mom got hers from, but I like the fact that these come in various colors and finishes. The quantity options are also a blessing as I needed more than I initially opted for. Needless to say I liked them so much I had to order more. I also loved how well and neatly packed they came. 10/10 recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026

recommand products