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Old 06-01-2013, 03:43 PM   #1
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Difference Between Headers And Open Headers?

If i am correct, i think open headers are just headers with no cats? Which voids warranty. Which sound better with the JBA Cat back? I know open headers is a lot louder but does it make it sound worst? Also there is no emission where I live.
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Old 06-01-2013, 03:56 PM   #2
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Open headers is headers with no exhaust pipe behind them...
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Old 06-01-2013, 04:01 PM   #3
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Would headers with an electrical cut out be considered "open"?
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Old 06-01-2013, 04:06 PM   #4
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Open headers is headers with no exhaust pipe behind them...
This. Like a race car.

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Would headers with an electrical cut out be considered "open"?
When they are open, yes.
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Old 06-01-2013, 04:07 PM   #5
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Does someone have a picture of the underside to explain more because I don't understand.
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Old 06-01-2013, 04:10 PM   #6
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Does someone have a picture of the underside to explain more because I don't understand.
Open headers

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Old 06-01-2013, 04:12 PM   #7
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This. Like a race car.



When they are open, yes.

Thank you for the quick response. I was considering an electrical cut out so I could keep my cats and thus pass smog if need be but still get the performance gain and sound of open headers when I want them. Do you think I am on the right track with that idea or have any better insight?
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Old 06-01-2013, 04:14 PM   #8
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So open headers are no cats and sound a lot louder and better?
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Old 06-01-2013, 04:17 PM   #9
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So open headers are no cats and sound a lot louder and better?
Not exactly. Open headers are no cats and no exhaust - and they're also stupid loud.
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Old 06-01-2013, 04:17 PM   #10
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Headers and no cats is pretty dang loud

Not a now, but before next May I'm getting cut outs, no doubt in my mind
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Old 06-01-2013, 04:18 PM   #11
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Better is all in personal preference. But yes they are a lot louder and do provide better exhaust flow.

A personal experience of mine in my roommates 02 trans am with a mechanical cut out (same as open headers) led me to like the sound in small doses. That's one reason a electric cut out has me interested since you can flip a switch and quiet her down. That experience also taught me that Nissans, Infinitis, BMW's, and Fords have more sensative car alarms than other companies.....
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Old 06-01-2013, 04:20 PM   #12
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Ok so I am not doing open headers. I want to Put the JBA catback with headers
Will this setup turn on the check engine light?
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Old 06-01-2013, 04:26 PM   #13
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Ok so I am not doing open headers. I want to Put the JBA catback with headers
Will this setup turn on the check engine light?
Yes, you will need a tune if you go for headers. The cat back by itself would not give you a CEL. There are a lot of threads with all the info you need in these forums.


And before you ask, YES a tune and headers will void your warranty but a cat back shouldn't
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Old 06-01-2013, 04:30 PM   #14
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Better is all in personal preference. But yes they are a lot louder and do provide better exhaust flow.

A personal experience of mine in my roommates 02 trans am with a mechanical cut out (same as open headers) led me to like the sound in small doses. That's one reason a electric cut out has me interested since you can flip a switch and quiet her down. That experience also taught me that Nissans, Infinitis, BMW's, and Fords have more sensative car alarms than other companies.....
Tell me about it - it's even worse when you park in an underground parking garage.
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Old 06-01-2013, 04:32 PM   #15
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Tell me about it - it's even worse when you park in an underground parking garage.
I was doing a canyon drive out here in that Trans Am and I went through a mid size tunnel and a pedestrian in the tunnel grabbed his ears and had an expression of physical pain on his face.
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Old 06-01-2013, 07:02 PM   #16
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Ok so I am not doing open headers. I want to Put the JBA catback with headers
Will this setup turn on the check engine light?
Just installed this setup. JBA headers and HF cats with 3" exhaust. Been driving it for 3 days now with no CEL and or codes?
I was under the assumption it would throw a code also? Any thoughts?
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Old 06-01-2013, 10:01 PM   #17
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Just installed this setup. JBA headers and HF cats with 3" exhaust. Been driving it for 3 days now with no CEL and or codes?
I was under the assumption it would throw a code also? Any thoughts?
How much did this setup cost you total without labor? Also is it extremely loud one guy told me it shakes the walls in his garage.
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