Header question?

Reply Subscribe

Thread Tools

Search this Thread

Sep 27, 2006 | 12:36 AM

ydlee24

Thread Starter

Racer

Joined: Jun 2006

Posts: 382

Likes: 0

From: San Mateo Ca

Header question?

Adding long or short headers will it cause the engine light to come on? And what are the down sides of adding them? Warranty?

Sep 27, 2006 | 12:50 AM

achilds

Melting Slicks

Joined: Oct 2005

Posts: 2,515

Likes: 3

From: Goleta California

Quote:

Originally Posted by ydlee24

Adding long or short headers will it cause the engine light to come on? And what are the down sides of adding them? Warranty?

I installed American Racing headers myself. No check engine light (CEL) and I have been running them for months now. The only down side is emmisions if it applies in your state. Many dealers will still honor you warranty with them installed, besides you can always switch back if you have a major problem.

Sep 27, 2006 | 12:57 AM

midnite902

Burning Brakes

Joined: Oct 2005

Posts: 1,131

Likes: 0

From: Dallas Texas

Most of the check engine lights resulting from headers are from the rear O2 sensors. A good tune will keep them from happening. If you installed yourself and you are careful with the O2 sensors you will probably not have a problem.

If you install headers, you should get a tune. Headers allow for a much more effecient AF ratio and timing settings

Sep 27, 2006 | 01:16 AM

glennhl

Le Mans Master

Joined: Feb 2006

Posts: 5,762

Likes: 4

From: Chandler Arizona

I've done headers on an 01 Z28 and an 06 C6. Got the CEL's on the 01 Z28 and a tune didn't make the CEL's go away until they actually turned off those codes in the computer.

Luckily I have not had any CEL's with the LG Pro LT's on my C6.

Sep 27, 2006 | 05:36 AM

Joe_G

Tech Contributor

Joined: Jul 2002

Posts: 14,950

Likes: 264

From: St. Louis, MO

St. Jude Donor '08

I had the PO430 rear o2 code & light with my headers. I'd reset it and it would come back a day later until I got the tune and the code was turned off.

Sep 27, 2006 | 02:04 PM

EuroRod

Race Director

Joined: Jan 2006

Posts: 18,396

Likes: 169

My DynaTech headers have been on the car for about 3 weeks now. No CE lights. I had the headers Jet-Hot coated. Thats helps keep the heat inside the tubes, and lights off the Hi-flow cats quicker. Very satisfied with their system. Easiest install I've ever had. All the parts were in the box. Bought them from Tybrne. BIG

Oct 1, 2006 | 08:09 AM

Kreuzen

Safety Car

Joined: Dec 2004

Posts: 4,276

Likes: 8

From: Tucson AZ

St. Jude Donor '08-'09-'10-'11-'12-'13-'14-'15

Kooks long tubes -- no problems after 2-years.

Oct 1, 2006 | 01:32 PM

VET4LES

Team Owner

Joined: Oct 2004

Posts: 27,420

Likes: 64

From: San Clemente CA

One down side could be emission test. In California they must be CARB (California Air Resorces Board) approved. Some test stations check and others don't. I put Doug Thorley headers on my motorhome and I was ask for the approval several times but most of the time I was not asked.