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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 61 Reviews
5 ★
97% 
59
4 ★
3% 
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3 ★
0% 
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SW
01/15/2022
Steven W.
United States United States

Keeps CEL off using bigger pipe

I switched to a 2.5 zzp exhaust and this worked great for keeping the engine light off with the increased exhaust flow A must have

PC
01/15/2022
Phillip C.
United States United States

Fix those CELs caused from deleting your cats!

I had no idea what I was doing at first. I bought two of these and put them on each O2 ****. I found out later that you do not need one of these on the first O2 **** location because it is before any cat and will cause your car to think it is running lean then throw a CEL too. Everything works as advertised once I went ahead and used 2 of the straight extenders and one 90 degree elbow extension. I don't think I'll ever get another CEL triggered by the 2nd bank location ever again now!

JD
12/13/2021
Jeremiah D.
Canada Canada

AMAZING!

These guys are such pros! The fit and finsh is 5 times better than the pic. Locking ring for the long threads to dial in perfect distances is sweet!! Completely fixed me CEL problem with a performance exhaust. Highly recommend. Great price awesome part!

PC
12/05/2021
Phillip C.
United States United States

No more CELs

It all worked perfectly once I had the parts in the right order!

JD
11/19/2021
Julian D.
United States United States

Exactly how described

Works excellent