JB4 O2 adapters for Infiniti Q50 / Q60 and Nissan Z VR30

What the VR30 O2 adapters are for

This pair simplifies installation and removal of the JB4 fuel wire on VR30 engines. OEM-style connectors allow the harness to connect without modifying the factory wiring, making service more straightforward. The adapters do not tune the engine or add power on their own; they are an installation accessory for the compatible JB4 system.

Package contents

The package contains two adapters. The JB4 and its fuel wire are not included. Confirm that your harness and connector version match the vehicle before ordering.

Fitment

Burger lists the 2016–2024 Infiniti Q50 3.0L VR30, 2017–2022 Infiniti Q60 3.0L VR30 and 2023+ Nissan Z 3.0L VR30, including Nismo. Verify engine code and model year.