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Short OR Long headers

This is a discussion on Short OR Long headers within the External Engine forums, part of the LSx Technical Help Section category; every one on this site has told me to go with long headers, but when i went to the local ...

  1. #1
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    Short OR Long headers

    every one on this site has told me to go with long headers, but when i went to the local speed shop the dude told me that the Trans AM and Mustang are made to have short headers. Keep in mind this will be my frist mod so i wanna make the exhust improve my low end not my top.

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    Member jag42420's Avatar
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    Shorties really aren't worth anything over stock. There are also mid length headers available, which will make a little power over stock. Long tubes will make the most power though.

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    Senior Member ss~zoso~ss's Avatar
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    just another shop dude that doesnt know what he's talking about just trying to sell what he has in stock

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    Pathelogical Liar BlackLT1Z28's Avatar
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    Who's to say what type of part was made for what car?
    That guy's an idiot. Go with longtubes and don't worry about it.

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    Senior Member INMY01TA's Avatar
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    Quote Originally Posted by ss~zoso~ss View Post
    just another shop dude that doesnt know what he's talking about just trying to sell what he has in stock
    Ditto.

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    dont long tubes mess with the cat converter so my car wont pass inspection

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    Member jag42420's Avatar
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    Your stock cats won't work with LTs, but you can put high flow aftermarkets on there to keep it legal and pass emissions.

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    Quote Originally Posted by ss~zoso~ss View Post
    just another shop dude that doesnt know what he's talking about just trying to sell what he has in stock
    Ditto. Get LTs and high flow cats if you must. Don't look back. The LS1 responds very well to LTs.

  9. #9
    The Bandit Wesman's Avatar
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    Go with Long Tubes, you won't regret it.

    Shorties aren't worth wasting your time, the stock manifolds are practically shorties.

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    Junior Member nitroushane's Avatar
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    Go with long tubes you will see a lot more torque than shorty or mid headers. You can install 02 simulators if you dont want to put cats back on your car, so you can pass smog

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    but do long lubes help my low end or my top

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    Member jag42420's Avatar
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    Generally both, as they have less backpressure than manifolds. You'll notice the gains in the upper RPMs. You really won't feel much of a gain in the lower RPMs.

    Here's a pretty decent header article. It doesn't really explain what the headers will do for you, but show variances in power produced by various header sizes: http://www.carcraft.com/techarticles...e_header_test/

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    Member cobrahunter's Avatar
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    All you guys on the other side of the country are lucky bastards!

    Here in CA, emissions are a thorn in our sides. The last 2 times I've gone for smog check, one of the first thing those guys do is look under my car (2 C if I've replaced the headers with long-tubes.) What a bunch of Haters!!

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    Junior Member nitroushane's Avatar
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    That sucks for you. I dont even have to smog my car. You got to love living by a small town.

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    Member jag42420's Avatar
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    In Kentucky, they don't care what you do with your exhaust. I passed an out of state title transfer inspection on a '79 Z28 with headers and turndowns. Probably 3/4 of the cars here would fail an emissions test.

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    Member cobrahunter's Avatar
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    Alright, alright, all you haters!

    Yeah, I know some guys around here are able to find someone who'll take cash to look the other way, but I haven't found one yet. At least, that's the ONLY mod I can't have. Would be nice though.

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    Quote Originally Posted by cobrahunter View Post
    Alright, alright, all you haters!

    Yeah, I know some guys around here are able to find someone who'll take cash to look the other way, but I haven't found one yet. At least, that's the ONLY mod I can't have. Would be nice though.
    go to a asian smog shop @ san jose. he won't know what is long tube.

    pm me when its time to smog it ill hook u up.

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    Veteran Hi-Po's Avatar
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    Quote Originally Posted by 97Trans_AM View Post
    but do long lubes help my low end or my top
    Both, but what size you get, length, collector length etc. is what determine's low and top end. Bottom line, Long tubes out perform in everyway compared to shorties and mid's.

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    Quote Originally Posted by Hi-Po View Post
    Both, but what size you get, length, collector length etc. is what determine's low and top end. Bottom line, Long tubes out perform in everyway compared to shorties and mid's.
    so if im looking for long tubes that will help my low end what am i looking 4 short or long collector length?

  20. #20
    Member danziger's Avatar
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    Quote Originally Posted by jag42420 View Post
    Your stock cats won't work with LTs, but you can put high flow aftermarkets on there to keep it legal and pass emissions.
    Not true. I used the stock cats in a header Y-pipe before and they worked well. You just have to work at getting them welded in there...

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