Skip to main content

Your Cart

Your cart is currently empty.
Click here to continue shopping.

O2 Bung Extender

Exhaust - O2 Bung Extender
Exhaust - O2 Bung Extender
This will reduce the chance of getting a CEL for running a high flow cat in your car. It is made from Stainless steel, has straight and a 90 degree bend so you have two options for a more indirect flow of exhaust gasses to the rear o2 sensor. The 90 degree extender angle is adjustable so it can fit in any position.
We do not recommend running without the rear o2 sensor because it could run the rear o2 test and reduce your gas mileage.
Exhaust - O2 Bung Extender
Exhaust - O2 Bung Extender
Customer Reviews
5.0 Based on 53 Reviews
Write a Review Ask a Question
  • Reviews
  • Questions

Thank you for submitting a review!

Your input is very much appreciated. Share it with your friends so they can enjoy it too!

Filter Reviews:
Christopher C.
United States United States
08 Chevy Cobalt

I had replaced stock catalytic convertor with high flow cat. had a p2270 code after installed O2 **** extender and resolved issue

Tyler B.
United States United States
Gets rid of codes

Got rid of the codes being thrown. Would recommend.

Ronald G.
United States United States

Excellent, good delivery and the fitting works as advertised.

United States United States
Solid Product

Great construction/welds. I purchased this to hopefully avoid a cel when switching to a catless DP. It has been a week, no cel

Eric R.
United States United States

No more check engine light for catalyst efficiency.