Kooks-Corsa

Reply Subscribe

Thread Tools

Search this Thread

Jul 14, 2008 | 06:07 PM

2007 C6

Thread Starter

Advanced

Joined: May 2006

Posts: 65

Likes: 0

From: Portland OR

Kooks-Corsa

I have A6 with Corsa sport exaust with the standard Corsa H pipes. If I install Kooks 1 7/8 headers with high flow Cats will I still be able to pass DEQ. I live in oregon and if any Engine lights come on it will not pass. I read some where that if you install headers a check engine light will come on. Is this true.

Jul 14, 2008 | 06:25 PM

Jimmy 2 Times

Burning Brakes

Joined: Oct 2003

Posts: 1,079

Likes: 13

From: east norriton pa

most likely. Just get a tune, and no more light

Jul 14, 2008 | 07:02 PM

Nate@CorvetteGarage

Supporting Vendor

Joined: Jan 2000

Posts: 5,683

Likes: 14

From: TX

Cruise-In I Veteran

St. Jude Contributor '04

We have installed several header and exhaust packages on C6s with no problems and no check engine light. As Jimmy advised, a good tune should remedy the problem if you do get the light.

Nate

__________________
Corvette Garage Inc
Xtreme Motorsports
1.806.863.3800
Website: Click here for Corvette Parts and Accessories!
Email: sales@corvettegarage.com

---------------------------------------------------

Jul 14, 2008 | 09:28 PM

Tony B4

Safety Car

Joined: Sep 2006

Posts: 3,922

Likes: 4

From: Cheektowaga NY

St. Jude Donor '08

Get the Kooks 1 3/4 headers the 1 7/8 are for bigger cubic inches.

Jul 14, 2008 | 11:25 PM

SS_C6

Intermediate

Joined: Nov 2007

Posts: 49

Likes: 0

From: Woodstock Maryland

kooks + corsa

just got kooks headers install at Tony's Corvette Shop and tony tells me, you need to have ALL the 02 sensors front ones and the rear ones and get tune.

Jul 15, 2008 | 03:32 AM

RadarP3C

Race Director

Joined: Mar 2007

Posts: 11,076

Likes: 29

From: Murfreesboro TN

A temporary fix is to use a code reader and reset the codes. This will give you about 50 miles before the O2 codes come back on.

A tuner can disable the O2 codes permanently.

Jul 15, 2008 | 09:38 AM

Finster07

Pro

Joined: Apr 2007

Posts: 663

Likes: 0

From: Arvada CO

Quote:

Originally Posted by SS_C6

just got kooks headers install at Tony's Corvette Shop and tony tells me, you need to have ALL the 02 sensors front ones and the rear ones and get tune.

Could you be a bit more specific here. Is Tony saying you need all the sensors to pass an Oregon emissions test or you need the rear O2 sensors to get the tune to work?

Since you didn't fill in your profile, I dont know if you live in Oregon and the above advice has to do with the Oregon emissions test.

I installed my Kooks 1 3/4, got the CEL the next day. The rear O2 sensors were installed and wired in. The first thing my tuner did was turn the rear O2 sensors OFF and then tuned the car. I have not gotten a CEL or code from the headers since. Many of us with headers have done this procedure. Either way, you will most likely get a CEL light due to the rear sensors. Your tuner will have to make adjustments to keep the rear O2 sensors from throwing a code and light.

I think you will find that you will install the rear O2 sensors to fill the holes, but your tuner will disable them during the tune. Problem solved.

Last edited by Finster07; Jul 15, 2008 at 09:41 AM.

Jul 16, 2008 | 10:00 AM

scottycards

Team Owner

Joined: Jun 2007

Posts: 31,088

Likes: 23

St. Jude Donor '08 thru '13

Where I live, there are no emissions tests. I have plugs in where my rear 02's would normally go.

Tuner will likely program out the rear 02's, and turn off CEL light.

My understanding (and please correct me if I'm wrong) is that the rear 02s primarily function only as a check to make sure your cats are not overheating.