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.

Customer Reviews

5.0 Based on 46 Reviews

5 ★

96%

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01/27/2021

Rey

United States

Great product

Let's talk bout the shipping, it took a while to get here over 5 days from initial delivery date, but thats not zzp fault they went ahead and mailed it the next day it was usps fault. Going forward, the quality if this is amazing, i thought it looked good in pictures but in person its such a better and nicer looking piece definitely appreciate it! It works like a charm, if you going straight pipe no cats this is a must or ull have to live with the ******* check engine like, over all awesome! Will continue to purchase from ZZP no dought! Highly recommended!

O2 Bung Extender

12/17/2020

David M.

United States

3800 cat downpipe

Bought this for my catted down pipe i only used the straight part of the o2 **** extender. Works amazing. Sounds amazing .

O2 Bung Extender

10/23/2020

Daniel P.

United States

Quality part and Works as expected

The part definitely had some weight and good quality to it. Had a P0420 code and this fixed the problem.

O2 Bung Extender

09/11/2020

Austin T.

United States

Fixed my Check Engine Light!

Ordered the Turbo Back Kit for my 2020 Sonic RS and threw it on and as expected the check engine light came on. Ordered this, installed it in 5 min and after driving it for a day or two the check engine light went off!

O2 Bung Extender

07/17/2020

Rodrigo S.

United States

O2 **** Extender

Worked well. Originally I installed the ZZP catted downpipe and the O2 sensor was smashed up against the heat guard wall which caused the wires to be exposed and short out causing CEL. Installed this item and wrapped the wires. Works perfect now and no CEL. Product works great and easy to install. Only thing is they should recommend this with the downpipe initially. Would have saved me from removing and installing downpipe twice. But ZZP puts out great quality products.

O2 Bung Extender

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O2 Bung Extender