Canadian Events Canada, eh?

Headers and e-test

Old 08-14-2016, 02:57 PM
  #1  
Frank4202
Melting Slicks
Thread Starter
 
Frank4202's Avatar
 
Member Since: Jun 2011
Posts: 2,098
Received 401 Likes on 224 Posts

Default Headers and e-test

Been thinking about getting a set of headers and x-pipe for my 97 c5. The thing holding me back is Southern Ontarios emissions standards. With the recent changes to the program, my 97 is the last year they actually do the dyno test. Has anyone had any issues with etest after installing headers? Not sure how well it would do with different cats aside from OEM.
Old 08-14-2016, 03:41 PM
  #2  
VETFEVER
Race Director
Support Corvetteforum!
 
VETFEVER's Avatar
 
Member Since: May 2007
Location: Feverish All Over
Posts: 10,754
Received 659 Likes on 443 Posts

Default

Originally Posted by Frank4202
Been thinking about getting a set of headers and x-pipe for my 97 c5. The thing holding me back is Southern Ontarios emissions standards. With the recent changes to the program, my 97 is the last year they actually do the dyno test. Has anyone had any issues with etest after installing headers? Not sure how well it would do with different cats aside from OEM.
As long as you install cat's you'll be good to go.
Old 08-14-2016, 03:45 PM
  #3  
Frank4202
Melting Slicks
Thread Starter
 
Frank4202's Avatar
 
Member Since: Jun 2011
Posts: 2,098
Received 401 Likes on 224 Posts

Default

Originally Posted by VETFEVER
As long as you install cat's you'll be good to go.
My last toy, after changing the cats it kept throwing p0420 codes for low catalyst efficiency. Should I expect a check engine light with the Vette too?
Old 08-14-2016, 04:21 PM
  #4  
VETFEVER
Race Director
Support Corvetteforum!
 
VETFEVER's Avatar
 
Member Since: May 2007
Location: Feverish All Over
Posts: 10,754
Received 659 Likes on 443 Posts

Default

Originally Posted by Frank4202
My last toy, after changing the cats it kept throwing p0420 codes for low catalyst efficiency. Should I expect a check engine light with the Vette too?
Not an expert, but if the cat's are good and hot when you take it in, the efficiency should be better.

Last edited by VETFEVER; 08-14-2016 at 04:21 PM.
Old 08-16-2016, 12:08 AM
  #5  
lionelhutz
Race Director
 
lionelhutz's Avatar
 
Member Since: Apr 2007
Location: South Western Ontario
Posts: 11,061
Received 845 Likes on 721 Posts

Default

My 98 easily passed the tailpipe test with headers before they changed to an OBDII port test.

You can get codes like that, but if tuned right those codes will be turned off as well.
Old 08-16-2016, 09:44 AM
  #6  
Frank4202
Melting Slicks
Thread Starter
 
Frank4202's Avatar
 
Member Since: Jun 2011
Posts: 2,098
Received 401 Likes on 224 Posts

Default

Originally Posted by lionelhutz
My 98 easily passed the tailpipe test with headers before they changed to an OBDII port test.

You can get codes like that, but if tuned right those codes will be turned off as well.
Is your car tuned? If so, where was it done?
Old 08-16-2016, 12:51 PM
  #7  
lionelhutz
Race Director
 
lionelhutz's Avatar
 
Member Since: Apr 2007
Location: South Western Ontario
Posts: 11,061
Received 845 Likes on 721 Posts

Default

Originally Posted by Frank4202
Is your car tuned? If so, where was it done?
Yes, by me.
Old 10-15-2017, 02:45 PM
  #8  
Frank4202
Melting Slicks
Thread Starter
 
Frank4202's Avatar
 
Member Since: Jun 2011
Posts: 2,098
Received 401 Likes on 224 Posts

Default

Originally Posted by lionelhutz
Yes, by me.
Still looking into this. Might go with shorties and keep the OEM cats.
Old 10-15-2017, 06:54 PM
  #9  
SladeX
Melting Slicks
 
SladeX's Avatar
 
Member Since: Aug 2014
Posts: 2,496
Received 833 Likes on 607 Posts
Default

Before the change over to ODB2 only for 98 up, I was passing the dyno test with my cammed, headers, 98 camaro.

The key is to have cats installed AND a good tune. Without the tune, it will be hard to pass. The tune required should be done on the street to better dial it in, the dyno tune doesn't do much for street conditions.
Old 10-17-2017, 12:33 AM
  #10  
lionelhutz
Race Director
 
lionelhutz's Avatar
 
Member Since: Apr 2007
Location: South Western Ontario
Posts: 11,061
Received 845 Likes on 721 Posts

Default

You'll gain so little power that shorties are hardly worth the time and money.

Long tube and decent quality high flow cats will pass if tuned right.
Old 10-21-2017, 03:46 PM
  #11  
Roadking103
Instructor
 
Roadking103's Avatar
 
Member Since: Oct 2012
Posts: 123
Likes: 0
Received 0 Likes on 0 Posts

Default

Originally Posted by Frank4202
Been thinking about getting a set of headers and x-pipe for my 97 c5. The thing holding me back is Southern Ontarios emissions standards. With the recent changes to the program, my 97 is the last year they actually do the dyno test. Has anyone had any issues with etest after installing headers? Not sure how well it would do with different cats aside from OEM.
I had ARH x pipe and high flow cats on my supercharged 03z06. Paased Ontario e-test no problem. Tuned by Kevin at Champion motors
Old 10-24-2017, 09:36 AM
  #12  
Frank4202
Melting Slicks
Thread Starter
 
Frank4202's Avatar
 
Member Since: Jun 2011
Posts: 2,098
Received 401 Likes on 224 Posts

Default

Originally Posted by lionelhutz
You'll gain so little power that shorties are hardly worth the time and money.

Long tube and decent quality high flow cats will pass if tuned right.
Too expensive. Not sure I wanna make the 4hr drive to Champion either.
Old 10-26-2017, 02:49 PM
  #13  
Pompitup
Intermediate
 
Pompitup's Avatar
 
Member Since: May 2015
Location: Oshawa, Ontario
Posts: 48
Received 8 Likes on 7 Posts
Default

Check out performance shops in Michigan seeing as your close. Lots of great shops there like Katech and Lingenfelter.

Last edited by Pompitup; 10-26-2017 at 03:05 PM.
Old 11-01-2017, 03:10 PM
  #14  
Cap'n Pete
Burning Brakes
 
Cap'n Pete's Avatar
 
Member Since: Dec 2004
Location: Oshawa Ontario
Posts: 1,112
Received 96 Likes on 77 Posts

Default

When I had headers installed on my '02 Camaro years back, I didn't run the rear set of O2 sensors, which would have thrown a code, so I had a shop program out the rear sensors altogether. The front set of O2 sensors are what control your air/fuel. The rear set provide the data for "catalytic efficiency". By deleting the rear set, that's no longer an issue.

Get notified of new replies

To Headers and e-test



Thread Tools
Search this Thread
Quick Reply: Headers and e-test



All times are GMT -4. The time now is 07:51 PM.