89 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 89 Reviews
5 ★
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4 ★
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LB
12/21/2019
LYNN B.
United States United States

Top Quality stuff!!

Pluged right in and allows me exter room

LS
11/03/2019
Lee S.
United States United States

Quality like always.

I ended up not needing this but the quality of this is spot on like I’ve come to expect from zzp.

JR
08/07/2019
Jeffrey R.
United States United States

Fast

Fast shipping thanks

KM
07/12/2019
Kyle M.
United States United States

2005 GTP daily

Well made extension, about 6 inches of extra length for me, running an old wbodystore DP and this.

GG
05/13/2019
Giberto G.

Excellent oxigen sensor extension hrness

Excellent oxigen sensor extension hrness thank you

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