Choosing The Right Long Tube Headers - Page 17 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

CamaroIOM12 · 07-23-2015, 07:08 AM

Looking into LT headers and high flow cats, all I have is a CAI. Do I need to get a tune if adding LT?

Apex Motorsports · 08-12-2015, 08:41 AM

Quote:

Originally Posted by CamaroIOM12

Looking into LT headers and high flow cats, all I have is a CAI. Do I need to get a tune if adding LT?

If you install LT headers and do not tune you will get a CEL. The CEL is due to the O2 sensor readings being messed up and you can still drive the car but we do not recommend doing that. Our advice is to wait in headers until you are ready to tune and wait to tune until you are ready to let your warranty go.

Wattser93 · 08-12-2015, 02:02 PM

Quote:

Originally Posted by Apex Motorsports

If you install LT headers and do not tune you will get a CEL. The CEL is due to the O2 sensor readings being messed up and you can still drive the car but we do not recommend doing that. Our advice is to wait in headers until you are ready to tune and wait to tune until you are ready to let your warranty go.

Can you turn off or hide the CEL for the rear O2 sensors with a Tech 2 or a similar tool that mechanics use? Or is the only option for turning off a tune?

Apex Motorsports · 09-14-2015, 11:54 AM

Quote:

Originally Posted by Wattser93

Can you turn off or hide the CEL for the rear O2 sensors with a Tech 2 or a similar tool that mechanics use? Or is the only option for turning off a tune?

Tech2 can clear it but I don't thing they can turn it off permanently. I could be wrong through.

Pr0j3kt1 · 09-15-2015, 11:52 PM

Quote:

Originally Posted by Wattser93

Can you turn off or hide the CEL for the rear O2 sensors with a Tech 2 or a similar tool that mechanics use? Or is the only option for turning off a tune?

I used a tuner (SCT) to shut off the CEL. While the needle happens to sit right over the light and hide it for the most part, it still annoyed the ^&*% outta me.

Apex Motorsports · 09-22-2015, 07:57 PM

Quote:

Originally Posted by Pr0j3kt1

I used a tuner (SCT) to shut off the CEL. While the needle happens to sit right over the light and hide it for the most part, it still annoyed the ^&*% outta me.

This, and any performance shop can do it as well. The dealership just isn't going to be much help.

theragtopguy · 09-22-2015, 08:14 PM

Is this true for ALL brands of LT headers or are there some that don't throw the CEL? How about the Tri-Y style headers?

Apex Motorsports · 09-23-2015, 10:06 AM

Quote:

Originally Posted by theragtopguy

Is this true for ALL brands of LT headers or are there some that don't throw the CEL? How about the Tri-Y style headers?

All long tube headers will throw a CEL. Sometimes it happens immediately, sometimes it happens a few miles down the road but it will happen

rosstermyer · 09-23-2015, 03:54 PM

someone at marylandspeed told me the kooks longtubes with the green cats will not throw a code. anyone have any experience there?

Apex Motorsports · 09-23-2015, 04:29 PM

Quote:

Originally Posted by rosstermyer

someone at marylandspeed told me the kooks longtubes with the green cats will not throw a code. anyone have any experience there?

That is how they are marketed but in reality it is a coin flip. Sometimes they trip a CEL and sometimes they do not. The probability of a CEL coming up is too high for me to be able to tell a customer that it will not without feel like I am lying just to get a sell.

theragtopguy · 09-23-2015, 08:56 PM

Can the CEL be turned off or does one have to spend the money for a whole tune. I have a M-6 and don't know what benefit I would get as opposed to an A-6 out of a tune. I am assuming a tune costs between 400-600 bucks, right? So that means if I were to put a set of Kook's LT headers along with the CAT pipes and a tune it would cost me over $2K. Wow. That's a lot.

Ah, for the good old days when you could slap a set of Hookers on with a shorty collector/glasspack dumping out the side of the car........that was cheap horsepower!!!

Apex Motorsports · 10-15-2015, 02:36 PM

Quote:

Originally Posted by theragtopguy

Can the CEL be turned off or does one have to spend the money for a whole tune. I have a M-6 and don't know what benefit I would get as opposed to an A-6 out of a tune. I am assuming a tune costs between 400-600 bucks, right? So that means if I were to put a set of Kook's LT headers along with the CAT pipes and a tune it would cost me over $2K. Wow. That's a lot.

Ah, for the good old days when you could slap a set of Hookers on with a shorty collector/glasspack dumping out the side of the car........that was cheap horsepower!!!

You can reset the CEL but without at least some tuning it will come back. The tuning will extract more power regardless of whether it is an auto or manual. It is similar to jetting a carb. You are optimizing the air/fuel ratios.

LSX Camaro · 10-15-2015, 10:57 PM

Quote:

Originally Posted by Apex Motorsports

Tech2 can clear it but I don't thing they can turn it off permanently. I could be wrong through.

The Tech2 or any scan tool can clear a code for a CEL. A program like EFI Live or HP Tuners can turn off codes.

Clearing and turning off are completely different. Your GM dealer cannot turn off codes.

FrostySS · 10-16-2015, 07:12 AM

Quote:

Originally Posted by LSX Camaro

The Tech2 or any scan tool can clear a code for a CEL. A program like EFI Live or HP Tuners can turn off codes.

Clearing and turning off are completely different. Your GM dealer cannot turn off codes.

^^^^ This. I get a few calls now and again asking if we can turn them off. I can get my techs to use their stuff to clear the code but we can't tune out the rear O2 sensors, nor would we even if we could.

07-23-2015, 07:08 AM	#225
CamaroIOM12 Jim Drives: 2013 2SS Camaro Convertible Join Date: Jun 2012 Location: PA Posts: 702 View My Garage	Looking into LT headers and high flow cats, all I have is a CAI. Do I need to get a tune if adding LT? __________________ "I'm that one shot one kill bringer of fate"

09-22-2015, 08:14 PM	#231
theragtopguy Lifetime Philly Fan Drives: 2015 Spring Edition 2SS M-6 Join Date: Mar 2012 Location: South Central Florida Posts: 1,861 View My Garage	Is this true for ALL brands of LT headers or are there some that don't throw the CEL? How about the Tri-Y style headers? __________________ 2015 Green Flash, Delivered 4/10/15 CAI, NPP Exhaust, Short-throw shifter BBK LT HEADERS 1 7/8” Tune by DynoSteve via SCTx4 Tuner One of 82 GF Ragtops built in '15 out of 811 Total [/SIZE]

09-23-2015, 08:56 PM	#235
theragtopguy Lifetime Philly Fan Drives: 2015 Spring Edition 2SS M-6 Join Date: Mar 2012 Location: South Central Florida Posts: 1,861 View My Garage	Can the CEL be turned off or does one have to spend the money for a whole tune. I have a M-6 and don't know what benefit I would get as opposed to an A-6 out of a tune. I am assuming a tune costs between 400-600 bucks, right? So that means if I were to put a set of Kook's LT headers along with the CAT pipes and a tune it would cost me over $2K. Wow. That's a lot. Ah, for the good old days when you could slap a set of Hookers on with a shorty collector/glasspack dumping out the side of the car........that was cheap horsepower!!! __________________ 2015 Green Flash, Delivered 4/10/15 CAI, NPP Exhaust, Short-throw shifter BBK LT HEADERS 1 7/8” Tune by DynoSteve via SCTx4 Tuner One of 82 GF Ragtops built in '15 out of 811 Total [/SIZE]

09-23-2015, 03:54 PM	#233
rosstermyer Drives: 16' RedHot2 6MT SS Join Date: Aug 2015 Location: KC,MO Posts: 104	someone at marylandspeed told me the kooks longtubes with the green cats will not throw a code. anyone have any experience there?