O2 Bung Extender


41 reviews

This product is currently out of stock.

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 41 Reviews
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  • heat guard wall
  • catless downpipe
  • tech support
  • wires
  • p0420 code
  • weight
  • steel
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  • sensor
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Daniel P.
United States 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.

Rodrigo S.
United States 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.

Tanisha S.
United States United States
Catch can

Simple easy install

A ZZPerformance Customer
Kurt S.
United States United States
Great experience overall. Fast shipping

Great experience overall. Fast shipping and the product did exactly what it was supposed to do.

Leonard W.
United States United States
Ease of purchase

From the 1st phone to delivery it was a very easy process.