SPDZ1 O2 Extension Harness – Pair (2 Harnesses Included)
Compatible with:

• 2011+ Nissan 370Z (G27) / G37

• 2014–2015 Infiniti Q50 / Q60

• All Infiniti Q40

Upgrade your installation with the SPDZ1 O2 Extension Harness, a custom-made solution that you won’t find anywhere else. Designed specifically for 12" applications, these harnesses make sensor relocation and aftermarket exhaust installs simple and hassle-free.

Each order includes two (2) O2 extension harnesses—enough for both sides—so you’re ready to complete your install without the need for splicing, soldering, or modifying your factory wiring.

Key Features:

• Direct plug-and-play fitment – no cutting required

• Proper 12" length for 370Z, Q50, Q60, and Q40 applications

• Heavy-duty construction for long-lasting reliability

• Heat-resistant loom to protect wiring against engine bay conditions

• Designed, tested, and supported by SPDZ1

Whether you’re installing high-flow catalytic converters, test pipes, or a full exhaust system, the SPDZ1 O2 Extension Harness ensures a clean, factory-style connection every time.

Note: This listing is for a pair (2 harnesses included).