ISR Performance O2 Sensor Adapter Extension Angled

The ISR Performance O2 Sensor Adapter Extension, Angled, is a sensor spacer that positions the oxygen sensor further from the exhaust stream than a direct-threaded sensor. The angled design helps the sensor clear tight spots around tunnels, heat shields and crossmembers where a straight extension would not fit.

Typical uses

• Rear O2 sensors after installing high flow cats or test pipes, where the stock sensor position can trigger a check engine light
• Relocating a sensor that sits too close to the floor, a heat shield or a subframe
• Exhaust builds on the Hyundai Genesis Coupe and Nissan 350Z where sensor clearance is tight

How it works

By spacing the sensor tip back from the main flow, the extension changes what the downstream sensor reads. Many owners use this approach to address a catalyst efficiency code after swapping to high flow cats, though results vary with the vehicle and the tune. The angled body also makes it easier to orient the sensor wiring away from heat.

Compatibility

Check the thread of your oxygen sensor and the bung on your exhaust before ordering. Install the sensor into the extension, then thread the extension into the bung, and keep the sensor wiring clear of the pipe.

All ISR Performance products are designed for off-road use only.