SPDZ1 Silverado & Sierra 12" O2 Sensor Extension Harnesses "PAIR" (2016-2025 GM Trucks & SUVs)

Easily upgrade your exhaust system without worrying about short O2 sensor wiring! This pair of 12-inch O2 sensor extension harnesses is designed for a perfect OEM-style fit on 2016-2025 Chevrolet Silverado, GMC Sierra, and other compatible GM Trucks & SUVs.

If you're installing long tube headers, high-flow catalytic converters, or a custom exhaust setup, these extensions make the job simple and stress-free. Built with high-quality connectors and heat-resistant wiring, they ensure a secure, durable connection every time.

Key Features:

✅ Perfect Fitment – Engineered for 2016-2024 GM Trucks & SUVs, including Silverado & Sierra
✅ Extended Length – Adds 12" of reach for relocating O2 sensors during exhaust upgrades
✅ Plug & Play Design – No cutting, splicing, or modifications required
✅ OEM-Quality Build – Heat-resistant wiring and durable connectors for long-lasting reliability
✅ Wide Compatibility – Works seamlessly with stock and aftermarket components

Vehicle Fitment:

• Chevrolet Silverado 1500 / 2500 / 3500 (2016-2025)

• GMC Sierra 1500 / 2500 / 3500 (2016-2025)

• Compatible with many GM Trucks & SUVs within the same platform