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Camaro V8 LS3 / L99 Engine, Exhaust, and Bolt-Ons Bolt-Ons | Intakes | Exhaust

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Old 03-03-2010, 11:15 PM   #1
376camaro
 
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American Racing Headers

I want to install American Racing 1 7/8 long tube stailess steel Headers with hight flow cats ( from American Racing), will my check engine light come on because of my secound pair of o2 sensors. If this will happen does anyone know were I can get restrictor sensors to eliminate this problem, or is there another solution???

If anyone has this setup on their car already please let me know if this problem occured.

Thank You
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Old 03-03-2010, 11:16 PM   #2
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Oh by the way I forgot to mention I have the LS3.
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Old 03-04-2010, 12:49 AM   #3
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I'm an idiot.

Can't help. I would think you could have it tuned, but I'm not sure.
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Old 03-04-2010, 07:50 AM   #4
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i have the arh with high flow cats no light problem and they are the best fitting headers i've ever installed . its a 45 minute job!
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Old 03-04-2010, 08:35 AM   #5
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I have the arh headers and yes i got the light. Went to my local discount auto had it read and turned off. Came back on about 100 miles later. No way around it coming on. Some guys on here say there light comes and goes. A tune is the only way to turn it off and have it stay off.
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Old 03-04-2010, 08:38 AM   #6
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Worth the effort to have it tuned.
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Old 03-04-2010, 08:39 AM   #7
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Quote:
Originally Posted by 1977and2010 View Post
I have the arh headers and yes i got the light. Went to my local discount auto had it read and turned off. Came back on about 100 miles later. No way around it coming on. Some guys on here say there light comes and goes. A tune is the only way to turn it off and have it stay off.
Did you have it dynoed before and after to see the gains without a tune?
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Old 03-04-2010, 09:02 AM   #8
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i have the arh with high flow cats no light problem and they are the best fitting headers i've ever installed . its a 45 minute job!
ARH
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Old 03-04-2010, 09:10 AM   #9
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Originally Posted by 376camaro View Post
I want to install American Racing 1 7/8 long tube stailess steel Headers with hight flow cats ( from American Racing), will my check engine light come on because of my secound pair of o2 sensors. If this will happen does anyone know were I can get restrictor sensors to eliminate this problem, or is there another solution???

If anyone has this setup on their car already please let me know if this problem occured.

Thank You
If you want to avoid the light, you will need to get a tune. This will also help you realize the full potential of the mod or mods you already have. I would advise you to knock out all your intake and exhaust mods before you have the tune, again, just to maximize your results.
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Old 03-04-2010, 09:25 AM   #10
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a good tune will give you 10 to 20hp on top of other mods know matter what you do to it and it will get rid of C.E.L. and it will shift better on the L99.
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Old 03-04-2010, 09:51 AM   #11
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I'm still trying to decide on headers. long tube for sure but, WHO? I don't know yet.
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Old 03-04-2010, 10:27 AM   #12
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IT is a good idea to have the car tuned as with long tube headers it moves the front o2 further downstream. The computer needs to know this. The computer is tuned from the factory with the front o2s in a certain spot. Move them downstream and the info they are getting is delay.
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Old 03-04-2010, 11:04 AM   #13
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ARH and KOOKS are 304 stainless that seem to be best quality, but Texas Speed has a good deal going for header to tip full exhaust price but they are 409 stainless which is good too. i have some beautiful ARHeaders that are staring at me waiting to be put on but i will install along with a cam when i can get all the parts together its a PIA to do a cam install on the L99.
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T-BONES BLACK 2SSRS TEAM L99

CAI w/ADM scoop,Magnacharged 3.8 pulley,L92 ported heads,ss valves,patriot springs,yella terra rockers,Comp cam,L99 to LS3 conv.ATI super damper,Taylor plug wires,NGK plugs,ARH 1 7/8 lt headers w/Borla stingers,Elite oil catch can,trans cooler,Jannetty built Richmond 4.11 rear end,Spohn trailing arms,front Racing Brake rotors,Hawk hps pads,BMR end links,AACstyle lighting. Thanks to Shane & crew for engine work at Thunder Racing & tuner Jeoff at EPS. 501rwhp-463rwtq ++

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