- Description
- Reviews
- Shipping and Refund
Power gains of up to 100hp and 100tq to the wheels on a stock vehicle
The JB4 is a plug-and-play Hyundai / Genesis performance tuner that connects to easy-to-access sensors in the engine bay and works with your factory ECU to optimize boost, timing, and fueling for stronger performance and reduced turbo lag.
Unlike basic tuning boxes, the JB4 includes a fully programmable CANbus system, upgradable firmware, and data logging. CANbus integration allows the JB4 to factor in pedal input, throttle position, gear, RPM, AFR, fuel trims, ignition advance, knock feedback, and more when controlling performance. It can also read and delete fault codes and includes safety strategies such as keeping boost lower until oil and coolant temperatures are up, and switching to a low-boost map if overheating, lean conditions, excessive knock, or overboost are detected.
The JB4 offers significantly more performance, functionality, and safety than an average performance chip. The default Map 1 runs about 4psi over stock peak, and maps (including stock and valet) can be selected on the fly using a BMS diagnostics cable or JB4 mobile adapter. Installation is discreet and fully removable with no trace when needed. Includes maps for 91 octane, 93 octane, and E85 (ethanol) mixtures. Fuel economy during normal driving is typically unchanged. Compatible with all driving modes.
Wirelessly connect to your JB4: Add the JB4PRO smartphone connection to wirelessly connect the JB4 tuner to your Bluetooth-compatible iOS or Android device. Record and analyze vehicle and tuning data, change JB4 performance maps, and update firmware as we release free updates with new features and refined mapping. The adapter fits inside the JB4 enclosure for improved weather protection and a cleaner installation. The free JB4PRO app includes an easy interface, help buttons, and advanced log analysis tools to estimate performance and help identify tuning concerns. For more info on how to use the JB4PRO free app, click here.
Key Features
- Power gains of up to 100hp and 100tq on a stock vehicle
- Improves 0-60 times and 1/4 mile times
- Preloaded with custom JB4 Kia/Hyundai/Genesis tuning software and up to 8 maps for various fuel types and modification levels
- Ethanol (E85) compatible tuning maps
- Ability to read and delete fault codes
- View and record up to 40 gauges and engine parameters in real-time with the JB4 app
- Boost by gear control in 1st, 2nd, and 3rd gears for optimal launches, adjustable via the JB4 app
- Control exhaust flap operation in most JB4 applications
- Compatible with JB4 Mobile for smartphone-based logging, tuning changes, and adjustments
- Delivers superior performance, functionality, and safety over standard performance chips
- Quick and easy Plug & Play installation
- CANbus OBDII integration for advanced tuning features and enhanced performance
- Improved performance over non-integrated chip tunes
- Runs as smoothly as stock for a factory-like driving experience
- Compatible with all driving modes
- Fuel economy remains unchanged during normal driving
- Requires 91 octane fuel or higher for optimal performance gains
- Not VIN-locked; can be removed without a trace and resold
- Includes a rugged JB4 billet aluminum enclosure for protection
- Designed and assembled in the USA
- Free USA shipping
- Backed by a 5-year warranty
Fitment
Hyundai
• 2021+ Hyundai Staria 3.5L SmartStream Turbo V6
Genesis
• 2022+ Genesis GV70 3.5L SmartStream Turbo V6
• 2021+ Genesis GV80 3.5L SmartStream Turbo V6
• 2025+ Genesis GV80 Coupe 3.5L SmartStream Turbo V6
• 2021+ Genesis G80 3.5L SmartStream Turbo V6
• 2022+ Genesis G90 3.5L SmartStream Turbo V6
If You don't see your Model, Please Check Here.
What is a JB4?
The JB4 is a plug-and-play tune for turbocharged vehicles. It installs between your car’s sensors and ECU and improves performance by controlling boost and related parameters through these connections. The JB4 stands out with advanced connection points and processing, including CANbus, fuel and spark control, Bluetooth app support, and safety systems. BMS publishes free mapping and firmware updates as ongoing development allows. The JB4 is not VIN locked and can be removed, transferred, or resold later.
Is the JB4 a real tune?
Yes. By tapping into specific sensors and CANbus for real-time data, the JB4 can alter boost, timing, AFR, and fuel trims similar to an ECU reflash, while retaining factory safety systems and without unlocking or flagging the ECU.
Document & Video

Handling
Orders shipped directly from our warehouse are usually processed the same business day if placed before 12 PM MST, and tracking details are provided within 1 business day.
For drop-shipped items, processing times may vary depending on the manufacturer, typically 3–5 business days. Tracking updates may take longer in such cases.
Expedited shipping applies only once the item is ready to ship.
Return
You have 30 days after receiving your order to request a return. Items must be unused, in original packaging, and include proof of purchase. Customers are responsible for covering the return shipping costs.
To start a return, email us at sales@palenonperformance.com. Returns sent without approval will not be accepted.
You can request a return directly from your account by selecting the return option on your order page. Here is the URL: https://shopify.com/55092379855/account/orders
Non-returnable items:
- Burger Motorsports (BMS) products
- Used items
- Air Intakes
- Hazardous materials, flammable liquids, or gases
- Discounted items and gift cards other than "PALENON PERFORMANCE" brand
Exchanges
Return the item and place a new order once approved.
Refunds
Approved refunds are issued to the original payment method. A restocking fee is 20% will be applied. Processing time depends on your bank or payment provider. The original shipping cost will not be refunded.
Cancellations
Canceled orders are subject to a 5% merchant fee (8% for Shop Pay installments). Custom, specialized items or pre-order items canceled within their lead time are also subject to this fee. Will also incur a 10% restocking fee.
Damaged or incorrect items
Inspect your order upon arrival and contact us immediately for assistance. If the wrong part was ordered, customer covers return shipping.
Disputes / Chargebacks
Our legal team is fully prepared to take stringent action against you for filing a baseless claim and initiating a fraudulent chargeback. This will lead to civil or criminal proceedings, which would require you to engage with our attorneys in our jurisdiction.
It is crucial to understand that filing a false chargeback is a serious offense, punishable by substantial fines or imprisonment. Potential penalties for fraudulent chargebacks can include one to three years in prison and fines ranging from $1,000 to $10,000. We treat all chargebacks with the utmost seriousness, regardless of the amount, as this is classified as a felony.
We will compose all necessary information to send your account to a collections agency and request that you be served once our lawyers organize the evidence and file a case against you.
Power gains of up to 100hp and 100tq to the wheels on a stock vehicle
The JB4 is a plug-and-play Hyundai / Genesis performance tuner that connects to easy-to-access sensors in the engine bay and works with your factory ECU to optimize boost, timing, and fueling for stronger performance and reduced turbo lag.
Unlike basic tuning boxes, the JB4 includes a fully programmable CANbus system, upgradable firmware, and data logging. CANbus integration allows the JB4 to factor in pedal input, throttle position, gear, RPM, AFR, fuel trims, ignition advance, knock feedback, and more when controlling performance. It can also read and delete fault codes and includes safety strategies such as keeping boost lower until oil and coolant temperatures are up, and switching to a low-boost map if overheating, lean conditions, excessive knock, or overboost are detected.
The JB4 offers significantly more performance, functionality, and safety than an average performance chip. The default Map 1 runs about 4psi over stock peak, and maps (including stock and valet) can be selected on the fly using a BMS diagnostics cable or JB4 mobile adapter. Installation is discreet and fully removable with no trace when needed. Includes maps for 91 octane, 93 octane, and E85 (ethanol) mixtures. Fuel economy during normal driving is typically unchanged. Compatible with all driving modes.
Wirelessly connect to your JB4: Add the JB4PRO smartphone connection to wirelessly connect the JB4 tuner to your Bluetooth-compatible iOS or Android device. Record and analyze vehicle and tuning data, change JB4 performance maps, and update firmware as we release free updates with new features and refined mapping. The adapter fits inside the JB4 enclosure for improved weather protection and a cleaner installation. The free JB4PRO app includes an easy interface, help buttons, and advanced log analysis tools to estimate performance and help identify tuning concerns. For more info on how to use the JB4PRO free app, click here.
Key Features
- Power gains of up to 100hp and 100tq on a stock vehicle
- Improves 0-60 times and 1/4 mile times
- Preloaded with custom JB4 Kia/Hyundai/Genesis tuning software and up to 8 maps for various fuel types and modification levels
- Ethanol (E85) compatible tuning maps
- Ability to read and delete fault codes
- View and record up to 40 gauges and engine parameters in real-time with the JB4 app
- Boost by gear control in 1st, 2nd, and 3rd gears for optimal launches, adjustable via the JB4 app
- Control exhaust flap operation in most JB4 applications
- Compatible with JB4 Mobile for smartphone-based logging, tuning changes, and adjustments
- Delivers superior performance, functionality, and safety over standard performance chips
- Quick and easy Plug & Play installation
- CANbus OBDII integration for advanced tuning features and enhanced performance
- Improved performance over non-integrated chip tunes
- Runs as smoothly as stock for a factory-like driving experience
- Compatible with all driving modes
- Fuel economy remains unchanged during normal driving
- Requires 91 octane fuel or higher for optimal performance gains
- Not VIN-locked; can be removed without a trace and resold
- Includes a rugged JB4 billet aluminum enclosure for protection
- Designed and assembled in the USA
- Free USA shipping
- Backed by a 5-year warranty
Fitment
Hyundai
• 2021+ Hyundai Staria 3.5L SmartStream Turbo V6
Genesis
• 2022+ Genesis GV70 3.5L SmartStream Turbo V6
• 2021+ Genesis GV80 3.5L SmartStream Turbo V6
• 2025+ Genesis GV80 Coupe 3.5L SmartStream Turbo V6
• 2021+ Genesis G80 3.5L SmartStream Turbo V6
• 2022+ Genesis G90 3.5L SmartStream Turbo V6
If You don't see your Model, Please Check Here.
What is a JB4?
The JB4 is a plug-and-play tune for turbocharged vehicles. It installs between your car’s sensors and ECU and improves performance by controlling boost and related parameters through these connections. The JB4 stands out with advanced connection points and processing, including CANbus, fuel and spark control, Bluetooth app support, and safety systems. BMS publishes free mapping and firmware updates as ongoing development allows. The JB4 is not VIN locked and can be removed, transferred, or resold later.
Is the JB4 a real tune?
Yes. By tapping into specific sensors and CANbus for real-time data, the JB4 can alter boost, timing, AFR, and fuel trims similar to an ECU reflash, while retaining factory safety systems and without unlocking or flagging the ECU.
Document & Video

Handling
Orders shipped directly from our warehouse are usually processed the same business day if placed before 12 PM MST, and tracking details are provided within 1 business day.
For drop-shipped items, processing times may vary depending on the manufacturer, typically 3–5 business days. Tracking updates may take longer in such cases.
Expedited shipping applies only once the item is ready to ship.
Return
You have 30 days after receiving your order to request a return. Items must be unused, in original packaging, and include proof of purchase. Customers are responsible for covering the return shipping costs.
To start a return, email us at sales@palenonperformance.com. Returns sent without approval will not be accepted.
You can request a return directly from your account by selecting the return option on your order page. Here is the URL: https://shopify.com/55092379855/account/orders
Non-returnable items:
- Burger Motorsports (BMS) products
- Used items
- Air Intakes
- Hazardous materials, flammable liquids, or gases
- Discounted items and gift cards other than "PALENON PERFORMANCE" brand
Exchanges
Return the item and place a new order once approved.
Refunds
Approved refunds are issued to the original payment method. A restocking fee is 20% will be applied. Processing time depends on your bank or payment provider. The original shipping cost will not be refunded.
Cancellations
Canceled orders are subject to a 5% merchant fee (8% for Shop Pay installments). Custom, specialized items or pre-order items canceled within their lead time are also subject to this fee. Will also incur a 10% restocking fee.
Damaged or incorrect items
Inspect your order upon arrival and contact us immediately for assistance. If the wrong part was ordered, customer covers return shipping.
Disputes / Chargebacks
Our legal team is fully prepared to take stringent action against you for filing a baseless claim and initiating a fraudulent chargeback. This will lead to civil or criminal proceedings, which would require you to engage with our attorneys in our jurisdiction.
It is crucial to understand that filing a false chargeback is a serious offense, punishable by substantial fines or imprisonment. Potential penalties for fraudulent chargebacks can include one to three years in prison and fines ranging from $1,000 to $10,000. We treat all chargebacks with the utmost seriousness, regardless of the amount, as this is classified as a felony.
We will compose all necessary information to send your account to a collections agency and request that you be served once our lawyers organize the evidence and file a case against you.
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