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benefits of headers

This is a discussion on benefits of headers within the External Engine forums, part of the LSx Technical Help Section category; I'm getting ready to purchase some longtubes, I'm just curious do they make a noticeable difference on a stock car? ...

  1. #1
    Member 346ci's Avatar
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    NBM
    1998 Z-28

    benefits of headers

    I'm getting ready to purchase some longtubes, I'm just curious do they make a noticeable difference on a stock car? Can you feel more power or anything? I just want to know if people were satisfied with the gains they got from headers? Thanks.

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    FAQ2 99DROPTOPZ's Avatar
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    1999 Chevy Camaro Convert

    I saw big gains from my headers one of the biggest gains for the $$$ you wont be disappointed.
    99 Z28 VERT A4 MODS: B&M transcooler, LS6 Intake, Pacesetter LT, ORY pipe, Flowmaster AT cat-back, SLP LID, UMI SFC, Hotchkis RLCA'S & STB. Tuned by Speed inc.

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    Member chieftransam's Avatar
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    2001 Pontiac Trans Am M6

    oh yeah.. they are awesome!!

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    old timer blue02Z's Avatar
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    Navy Blue Metallic
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    i love mine!! biggest improvement i have done this far. get cutouts for each one so you can open them up and rattle your brains out

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    Member 346ci's Avatar
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    NBM
    1998 Z-28

    So you can feel a difference with headers? I'm getting excited about longtubes now.

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    Senior Member splitfinger09's Avatar
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    Bright Rally Red
    2000 Camaro SS #5075 M6

    15-20rwhp untuned. What kind of exhaust are you going to run with the LT's?

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    The Bandit Wesman's Avatar
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    1998 Trans Am WS6

    I noticed a huge improvement in midrange and low end power after adding long tubes. Also note that I have an LS6 intake, which I installed prior to the headers. The combination of both gives you the best gains.

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    Member Sunset T/A's Avatar
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    Sunset Orange
    2002 TransAm

    Definitely more power, especially if you have it tuned.

  9. #9
    Member Z ROADSTER's Avatar
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    PEWTER
    2002 Z/28 VERT.

    Mine's an 02 , so how much of a gain with & with out a tune using the stock system & cat back. I want to keep my stock cats as they are new.

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    old timer blue02Z's Avatar
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    well you cant keep your stock cats with longtubes, you need to get some random technology or magnaflow cats and have em welded in. the stockers wont fit. when i did mine i had a pacesetter y-pipe put in with a magnaflow muffler. i changed from a regular y-pipe and a flowmaster 80 series with a cutout. i had a huge improvement in top end. ran that setup for almost a year then got a vinci tuner to help out. what sucks is when i got the tuner, i just moved up here to BFE 7200 feet up and could not feel the difference

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    2000 SS

    My headers made a huge difference. Before the headers I couldn't spin the tires from a punch in first. Now they light up pretty good. The sound with the cutout open is awesome as well.

    2000 SS M6 #5445 - 13k miles
    SLP Lid, Pacesetter LT's/ORY, SLP dual/dual catback, QTP cutout, Hurst w/ WS6 store SS

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    Quote Originally Posted by RedRocketZ28 View Post
    My headers made a huge difference. Before the headers I couldn't spin the tires from a punch in first. Now they light up pretty good. The sound with the cutout open is awesome as well.
    x2

    i could spin punching in 1st ~ 20-25mph before, but now i can do it w/o even going wot. sideways on the 1-2 shift as well with 275 pirellis all around. however, i felt like i lost power below 2000 rpms, and subsequently i dont hit 6th till 55-60 with my "normal" driving. any lower and i get little "hiccups"

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    Moderator Firebirdjones's Avatar
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    Quote Originally Posted by 346ci View Post
    I'm getting ready to purchase some longtubes, I'm just curious do they make a noticeable difference on a stock car? Can you feel more power or anything? I just want to know if people were satisfied with the gains they got from headers? Thanks.
    I just installed long tube headers and off road Y-pipe on an otherwise stock 02 SS. Here is what I have found.

    Logging my LTFT's they haven't changed much,,,only showing +1 in most places so it didn't lean out the motor as much as I had anticipated. I only had 0 and -1/-2 in most all places. With that said I haven't bothered to tune the car,,,,,I may fatten the fuel curve only slightly sometime in the future.

    So I left the car alone and went to the track to see how much it picked up. With DA very close to the last stock baseline run,,,,and cutting exactly the same 60 foot times,,,,,the car picked up a tenth and a little over 1 mph quarter mile. Not huge improvements but it is noticeable.

    What I noticed most of all is the gas mileage difference now. As I would get 19 mpg around town very consistently,,,,it now gets 21 mpg on a regular basis.

    Also changed the sound of the car slightly,,,,just a little louder,,,not because I removed the cats,,,as they were already gutted. Hope that helps.

  14. #14
    Member jag42420's Avatar
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    2002 WS6 Trans Am

    Quote Originally Posted by 346ci View Post
    I'm getting ready to purchase some longtubes, I'm just curious do they make a noticeable difference on a stock car? Can you feel more power or anything? I just want to know if people were satisfied with the gains they got from headers? Thanks.
    I'd agree with the 15-20ish HP gain. It takes the PCM a bit to relearn fuel mix. You'll hear and feel a difference, but nothing earth shaking.

    With your car being a 98, I'd recommend checking into getting a LS6 intake and a tune too.

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    Red
    1998 Camaro SS

    re:

    I felt a difference after my headers and saw a slight increase in MPG. The great thing about longtubes are that you well see bigger improvements the more you mod your engine.
    1998 Camaro SS Hard Coupe Bright Red #1593
    Mods: Lots!!, still my daily driver except for winter
    383rwhp 370rwft/lbs

    1979 Corvette
    Mods Lots!!, weekend cruiser
    325rwhp and 320rwft/lbs

    2007 Dodge Ram 1500 4x4 (Yes its got a HEMI)
    Mods: Catback, BFI CAI, Winter daily driver

  16. #16
    Member ApexVIII's Avatar
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    1998 Camaro Z28

    its a really good mod, expecially if you are going to get a cam!
    M6, Lid, Ported and Polished Throttle Body (By Me!), LT, Custom Catted Y, Electric Cutout, PHB, LCA13.21@108 with a 2.3 60'

  17. #17
    Member SpeedWorld's Avatar
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    2001 Camaro SS

    It's the first big bolt on everyone needs to get. They help the car in every way and make good power. Definitely good with a cam. It will get very loud with an aftermarket exhaust and no cats
    2001 Chevrolet Camaro SS M6
    Thunder Racing 224/224 .563/.563 112 LSA
    FLP longtube headers (No cats) and y pipe
    GMMG catback
    Underdrive pulley
    LS1 motorsports lid
    PRO 5.0 with Lous Short stick
    Lower control arms,adjustable panhard bar, subframe connectors.
    NITTO 555RII's

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    Member chieftransam's Avatar
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    2001 Pontiac Trans Am M6

    Change your stock cat back as it will also steal a few hp. (If funds allow) I got the hooker lt's and y pipe with electric cutout to go along with my h/c. I love it!!

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    do any of you have to pass smog checks?

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    Red
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    re:

    Not here in Iowa

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