Below is a general manufacturer product group description. Please note the information below is not item specific. Item specifics are above in product details.

Universal O2 Bung
Steel 18mm X 1.5 Weld-on 02 bung for adding Oxygen sensors to your exhaust.

Zinc Coated Steel
Life Time Warranty
Made in USA

Universal O2 Extender
On ODB-II vehicles (96+), the ECU has two O2 sensors for diagnostic purposes. The first O2 sensor is located before the Catalytic Converter. This O2 sensor is responsible for all the Air/Fuel tuning and is imperative to the operation of the vehicle.
This Steel O2 sensor extender is basically for keeping the O2 sensor out of exhaust pipe. These also work when running a hi flow cat or a test pipe. It’s a very simple 10~15 mins installation, This extender will fit most O2 sensors with 18mm thread size.

Improved Gas mileage
Fixes CEL in most cases
Life Time Warranty
Made in USA



Manufactured and Sold Expressly for Non-Road Vehicles Used Solely for Competition.
Racing, Modified Racing Exhaust Testing an Tuning Diagnostics ONLY.
Not sold For Use On Production Street Vehicles ("on road" or "on highway" vehicles).