93 reviews

O2 Extension Harness

SKU: ZZ-O2EXHN-1A

$15.00 Sale price

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Regular price $15.00

Most header kits will require this because the primary (front) O2 sensor is mounted further down the header rather than right next to the head like it is mounted in the factory rear manifold. All of our o2 extensions are 27" long.

Different models:

A. '97-05 Grand Prix (front)/Regal, 04-07 Cobalt/Redline 2.0L, '00+ Monte Carlo/Impala/Bonneville.

B. '04-07 Grand Prix Rear, '06+ Cobalt 2.4L, '08+ HHR (rear O2)

C. '06+ Grand Prix front, 06+ HHR 2.4L (front) 

Please verify the style of O2 plug you will need by looking at your actual plug on the car. Some early model cars have used the previous model O2 plug.

The 2004+ Grand Prix rear O2 is mounted far forward, so when you install a ZZP downpipe you will need to pick up the "B"('04-07) & "C"('08) o2 extension so you can use the factory rear O2 sensor.

You are viewing a product listed on the following platform:

3800
Ecotec

Most header kits will require this because the primary (front) O2 sensor is mounted further down the header rather than right next to the head like it is mounted in the factory rear manifold. All of our o2 extensions are 27" long.

Different models:

A. '97-05 Grand Prix (front)/Regal, 04-07 Cobalt/Redline 2.0L, '00+ Monte Carlo/Impala/Bonneville.

B. '04-07 Grand Prix Rear, '06+ Cobalt 2.4L, '08+ HHR (rear O2)

C. '06+ Grand Prix front, 06+ HHR 2.4L (front) 

Please verify the style of O2 plug you will need by looking at your actual plug on the car. Some early model cars have used the previous model O2 plug.

The 2004+ Grand Prix rear O2 is mounted far forward, so when you install a ZZP downpipe you will need to pick up the "B"('04-07) & "C"('08) o2 extension so you can use the factory rear O2 sensor.

Customer Reviews
4.9 Based on 93 Reviews
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KD
05/17/2020
Kyle D.
United States
A++

Very fast shipping!! Only took like 2 days to receive and exactly what I needed for long tube headers.

TH
05/15/2020
Tyler H.
Canada Canada
Excellent quality and speed delivery

Fantastic. The parts were well priced and delivered to my door faster then I had hoped for.

BP
03/06/2020
Bri P.
United States United States
Perfect

I ordered a long tube header and this piece is just what I needed.

DC
02/29/2020
Debbie C.
United States United States
Good Ext. Harness

good product, I have used this ext. before

LB
12/21/2019
LYNN B.
United States United States
Top Quality stuff!!

Pluged right in and allows me exter room

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