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HP. Gains with Shorty Headers

This is a discussion on HP. Gains with Shorty Headers within the External Engine forums, part of the LSx Technical Help Section category; Do any of you guys have actuall dyno numbers showing gains from shorty headers? or personal input on the gains ...

  1. #1
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    pewter
    2002 Tans am WS6 M6

    HP. Gains with Shorty Headers

    Do any of you guys have actuall dyno numbers showing gains from shorty headers? or personal input on the gains Thanks
    2002 Trans Am WS6 M6

  2. #2
    Senior Member Orcus79's Avatar
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    I don't have any numbers nor own a set, but there will be nay sayers that say shorties are not worth it. Personally in terms of ease of install and not needing to rebuild your entire exhaust i think they are. LTs are great for top end and drag racing if thats what you are doing, but for a street car that cruises the highway, I am partial to shorties.

    Gains I would guess would be 5 to 10 conservativly over stock.

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    pewter
    2002 Tans am WS6 M6

    I was also thinking about the WEIGHT reduction. The stock cast manifolds are HEAVY and I think a set of eldelbrock or what ever would cut 20-25 lds of the front end (which would be good)

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    LTX N20LT4's Avatar
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    Quote Originally Posted by Richy_Rich67 View Post
    Do any of you guys have actuall dyno numbers showing gains from shorty headers? or personal input on the gains Thanks
    With shorties your not gonna see much. For the same amount of money, why not go with a set of mid-length headers. They'll net you a higher gain and there emissions-legal to.

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    I have a set of tri flow shorty headers. they perform great. with the following mods.
    tri flow shorty headers. tri flo cat back, twin flow air intake, and a tts tune i made 330hp to the tires.. close to a 40 hp gain over stock. I was quite happy. I'm now running a 408 motor and i want a set of long tubes as i'm setting the car up for the track. so if you are interested i will cut you a deal on my shortys and a polished holley intake manifold

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    Member blk99ws6ta's Avatar
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    Quote Originally Posted by c5andtyphoon View Post
    I have a set of tri flow shorty headers. they perform great. with the following mods.
    tri flow shorty headers. tri flo cat back, twin flow air intake, and a tts tune i made 330hp to the tires.. close to a 40 hp gain over stock. I was quite happy. I'm now running a 408 motor and i want a set of long tubes as i'm setting the car up for the track. so if you are interested i will cut you a deal on my shortys and a polished holley intake manifold
    How much are asking?

  7. #7
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    do they make a mid length for the ls1 in 2002?

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    Quote Originally Posted by Richy_Rich67 View Post
    do they make a mid length for the ls1 in 2002?
    Yes, Macs
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    torch red
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    I will sell the tri flo headers and my polished intake manifold for 1000 bucks for the pair + shipping

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