SKU: 3058455362

JB4 Performance Tuner for 2013-Present Fiat Abarth Turbo - Burger Tuning

Sale price$269.55 Regular price$299.50
Save 10%

Pay in installments of $74.88 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 27 - Oct 2

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

JB4 Performance Tuner for 2013-Present Fiat Abarth Turbo - Burger TuningPower gains of up to 40whp and 40wtq on a factory vehicle without the risks of flashing! The JB4 is a plug and play tuner that attaches to two easy to access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag. No ECU flash needed and compatible with locked ECUs Installation is very discrete and unlike flash remaps which are quick to install but can

Power gains of up to 40whp and 40wtq on a factory vehicle without the risks of flashing!

The JB4 is a plug and play tuner that attaches to two easy to access sensors in the engine bay and works with your factory ECU tuning to remap your boost, timing, and fueling for optimal performance and reduced turbo lag.

No ECU flash needed and compatible with locked 🔒 ECUs

Installation is very discrete and unlike flash remaps which are quick to install but can never be fully removed with a JB4 the vehicle is never aware it's making more than the factory boost or power levels. Fuel economy during normal driving is unchanged and it's compatible with all driving modes including towing.

Unlike other less advanced systems, the JB4 includes CANbus functionality allowing it to take in critical engine data directly from the ECU for real-time tuning. The data includes pedal position, throttle position, timing advance, fuel trims, air/fuel ratio, engine knock, fuel trims, gear, and much more. Other tuners without CANbus are not able to even monitor this critical engine data no less incorporate it real-time into their tuning algorithms. CANbus allows the JB4 to provide huge power increases with unparalleled power delivery.

The JB4 includes multiple maps including those for 91 octane, 93 octane, factory tuning, VALET mode, E85 mixtures, and unleaded race gas. In addition, it offers boost by gear settings to improve launches, the ability to read and delete fault codes, and much more. The JB4 is made in the USA and includes a 5-year warranty.

Fiat Abrath JB4 map guide. Always check the map descriptions within in the JB4 mobile app when changing maps for the latest information or any updates to this map guide:

Map 0: Factory Tuning
Map 1: 91+ octane (+5psi peak)
Map 2: 93+ octane (+6psi peak)
Map 3: 93-E30 (+6psi peak, less taper)
Map 5: E30 (+6psi peak, less taper)
Map 6: Custom Tuning
Map 7: Unleaded Race Gas (+7psi peak)
Map 8: Valet Mode (20% less boost than factory)

Click here for the full map guide, latest firmware notes, and discussion

Wirelessly Connect to your JB4: Our all-new JB4 PRO smartphone connection is included to wirelessly connect the JB4 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 information about the JB4PRO mobile app click here.

JB4 Features & Benefits

• Power gains of up to 40whp and 40wtq on a factory vehicle
• Improves 0-60 times and 1/4 mile times
• Preloaded with custom JB4 Fiat Abarth 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
• Exhaust flap operation can be controlled in most JB4 applications
• 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 extended warranty

Vehicle Fitment

Fiat Abarth
• 2013-Present Fiat Abarth Turbo

 

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. 

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.


Fiat Abarth Dyno Results


Fiat Abarth Dyno Video

 

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: 3058455362

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.2 ★★★★★
Based on 20 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
Corey
Lexington, US
★★★★★ 5
Amazing Quality & Price
Color: Black Band and Blue Face, Color: Black Band and Blue Face
Exactly as described. It looks absolutely stunning in person. It's very lightweight. Adjustable metal band with tool for ejecting the pins and band pieces. Movement around my wrist feels great and not pinching my arm hairs. Extremely easy to use and set up. Fits perfectly after making some minor adjustments on the band. Battery life promise of 10 years.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
G
Verified Purchase
Gustavo Salinas
Pawtucket, US
★★★★★ 5
Not bad for a watch under 50 bucks
Color: G2856-all silver, Color: G2856-all silver
Im not sure what material this watch is made of but the band doesn’t sound weird, it doesn’t feel like a very solid watch but it really looks fancy and nice i really like it a lot,plus lets be realistic you can have high expectations for 40 bucks, is the first one I bought from this brand, I would like to buy yhe automatic one that is around 150 but i want to try the cheapest one first and see if i like it or not, so far im happy i will update in some time to see how’s holding up
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
K
Verified Purchase
Karol
Lexington, US
★★★★★ 4
Elegant and affordable—exceeds expectations.
Color: Black Band and Blue Face
⭐⭐⭐⭐☆ (4/5) A very elegant watch offering excellent value for money. The blue design with gold accents looks modern and eye-catching—ideal for any occasion. The materials feel high-quality, and it keeps time with good precision. As a minor note, some of the sub-dials are decorative, and the strap can be a bit tricky to adjust. Overall, a very good purchase for the price. 👍
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
L
Verified Purchase
Liz
New York, US
★★★★★ 5
Beautiful watch, brilliant specs, recipient thrilled!
Color: Gold Silver Band and Blue Face
I was looking for an affordable watch for my son as a graduation gift and this is a BEAUTIFUL watch! Quartz movement and stainless steel and he is over the moon! Stunning.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
A
Verified Purchase
AshU2010
Houston, US
★★★★★ 5
Got water in the face just a few weeks after purchase
Color: Gold Silver Band and White Face, Color: Gold Silver Band and White Face
UPDATE: After leaving this review OLEVS Amazon customer service contacted me. I was given a full refund for the watch. Much better customer service!!!! The watch is heavy enough and looks nice but a few weeks after having it water got in the face of it. Contacted OLEVS and they basically told me they couldn’t help me since I didn’t buy it from their official site. They don’t offer support for Amazon purchases. Of course it is past the Amazon return window.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 23, 2026

recommand products