- Description
- Reviews
- Shipping and Refund
Simplify your G Chassis BMW and GR SupraJB4 installation with our new Direct CANbus Harness. This plug-and-play harness connects the JB4 directly to the vehicle’s CANbus at the ECU, eliminating the need to route a CAN/OBDII cable through the firewall and into the passenger compartment.
The result is a cleaner, faster, and easier JB4 installation with no need to run wires inside the passenger compartment to access the OBDII port under the dash.
Also allows passive CANbus mode where the JB4 uses read only channels for its basic tuning, allowing full use of the OBDII port for logging via MHD or any other scan tool during full throttle runs!
NOTE: Requires compatible JB4 or JB4PRO firmware and settings to enable. For JB4PRO B58/S58 systems turn on option 11 to enable, and turn on option 12 to run the JB4PRO in passive mode only. In passive mode certain channels such as AFR and timing corrections are not available, so this mode would normally only be used while the OBDII port is otherwise occupied. Not compatible with 2025+ Gen3 B48/B58 platforms.
Features:
• Direct CANbus connection at the ECU
• Eliminates routing wiring into the passenger compartment
• Cleaner, more professional installation
• Significantly reduces installation time and hassle
• Plug-and-play design for G Series B58 S58 BMW and B58 Supra
• Higher CANbus sample rate being directly on PTCAN
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.
Simplify your G Chassis BMW and GR SupraJB4 installation with our new Direct CANbus Harness. This plug-and-play harness connects the JB4 directly to the vehicle’s CANbus at the ECU, eliminating the need to route a CAN/OBDII cable through the firewall and into the passenger compartment.
The result is a cleaner, faster, and easier JB4 installation with no need to run wires inside the passenger compartment to access the OBDII port under the dash.
Also allows passive CANbus mode where the JB4 uses read only channels for its basic tuning, allowing full use of the OBDII port for logging via MHD or any other scan tool during full throttle runs!
NOTE: Requires compatible JB4 or JB4PRO firmware and settings to enable. For JB4PRO B58/S58 systems turn on option 11 to enable, and turn on option 12 to run the JB4PRO in passive mode only. In passive mode certain channels such as AFR and timing corrections are not available, so this mode would normally only be used while the OBDII port is otherwise occupied. Not compatible with 2025+ Gen3 B48/B58 platforms.
Features:
• Direct CANbus connection at the ECU
• Eliminates routing wiring into the passenger compartment
• Cleaner, more professional installation
• Significantly reduces installation time and hassle
• Plug-and-play design for G Series B58 S58 BMW and B58 Supra
• Higher CANbus sample rate being directly on PTCAN
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.
