VR30 O2 Adapters for Infiniti Q50/Q60/Nissan Z

These plug-and-play O2 adapters simplify the installation and removal of JB4 fuel wires for all VR30 Infiniti and Nissan Z engines. Additionally, they eliminate the need to tap into factory wires. High-quality OEM connections ensure a hassle-free setup. These adapters are sold in pairs.

🔧 Installation: The black fuel wire from the JB4 posi-taps to the red wire on each harness and the black connections plug into the o2 sensor connection on each side. Enable Option 0 in the JB4 app under JB4 Basic User Adjustments to activate. 

Vehicle Fitment

Infiniti
• 2016-2024 Infiniti Q50 VR30 3.0L Twin Turbo, including LUXE, SPORT, SENSORY, and RED SPORT 400 models
• 2017-2022 Infiniti Q60 VR30 3.0L Twin Turbo, including PURE, LUXE, SPORT, and RED SPORT 400 models

Nissan Z
• 2023+ Nissan Z Vr30 3.0L Twin Turbo  including Nismo