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Old 09-28-2018, 03:39 AM   #1
Zl1-84
 
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How to tell if I have after market headers

Hello,
I recently purchased a 2013 zl1 and was told it has aftermarket headers and exhaust. The exhaust is a borla atak system, but I dont know how to tell of the headers were replaced and if they are long or short tube. I am working on getting a custom tune and need to know. Any ideas on how I can tell. Based in the look underneath, I would say they are after market, but I don't know how to determine long ur short.

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Old 09-28-2018, 08:55 AM   #2
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Quote:
Originally Posted by Zl1-84 View Post
Hello,
I recently purchased a 2013 zl1 and was told it has aftermarket headers and exhaust. The exhaust is a borla atak system, but I dont know how to tell of the headers were replaced and if they are long or short tube. I am working on getting a custom tune and need to know. Any ideas on how I can tell. Based in the look underneath, I would say they are after market, but I don't know how to determine long ur short.

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If they’re long tube headers, you won’t see any flanges on the pipe and the pipes will not merge until under the car, short tube headers have a flange after a few inches of pipe where they connect to the cats. Post a pic if you want someone to tell you what they are
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Old 09-28-2018, 10:10 AM   #3
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Stock headers will have a heat shield on them. Also if shorty headers, you will be able to see the midpipe connection from the engine bay. Long tube headers will be continuous under the car.
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Old 09-28-2018, 11:05 AM   #4
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Post a picture and you'll get an answer.
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Old 09-28-2018, 06:28 PM   #5
Zl1-84
 
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Here are some pics, thanks for any help you can give.

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Last edited by Zl1-84; 09-28-2018 at 06:41 PM.
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Old 09-28-2018, 07:41 PM   #6
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You have long tubes with either cats, resonators, or gutted cats.
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Old 09-29-2018, 03:57 PM   #7
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Thanks!

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