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Smooth Bellows

This is a discussion on Smooth Bellows within the External Engine forums, part of the LSx Technical Help Section category; Is it really worth the $70.00? Where do you sit on WRHP gains after; Lid Smooth bellows Ported and polished ...

  1. #1
    Junior Member tznutts's Avatar
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    Midnight Blue
    1999 Trans Am M6

    Smooth Bellows

    Is it really worth the $70.00? Where do you sit on WRHP gains after;

    Lid
    Smooth bellows
    Ported and polished TB
    Cut back EGR
    De-Screen
    Coolant bypass

  2. #2
    MANWHORE TEAM suede's Avatar
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    Negro
    2000 Trans Am WS.6

    Save yourself some money and just go down to the local ace hardware and buy a fernco 3 in rubber sewage pipe splice. Works like a charm for like 6 bucks. Honestly it is more for looks than anything and i dout its worth the 1-2 horse for 60-70 bucks

  3. #3
    Firebird Encyclopedia 9T8W66's Avatar
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    Navy Blue Metallic
    `98 Formula M6 HdTp

    Let Me put it to you this way
    The amount of HP you would get from a smooth bellow would not be enough to feel a difference on the street. So don't waste your money.

  4. #4
    Member 89LX's Avatar
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    Navy
    2000 Z28 M6

    Accumulative(RWHP) in nature

    Most Bolt-ons are accumulative(RWHP) in nature and a person has to start some where. Air in and air out are the key for any internal combustion engine to free-up HP. All these small add-ons total at the end. Got to start some where unless you spray or force air.

  5. #5
    Likes twisty roads bene's Avatar
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    Light Pewter Metallic
    2K Camaro Z28

    Just keep your stock bellow. Its an appearance mod, no HP will add to your car.


    2K LPM Z28 M6- GMHTP StreetHeat feature Nov 12- Camaro Performers Readers' Rides feature Nov 12
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  6. #6
    old timer blue02Z's Avatar
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    Navy Blue Metallic
    2002 Z28

    i got one then i had to use my stocker to get my CAI on, so i gave it to my brother. when i had it, i liked it, every little helps. you will def. get more power from the bellow than descreening your maf

  7. #7
    Just me Y2KPewterSS's Avatar
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    Pewter metallic
    2000 Camaro SS

    Save your $50-70 dollars for a much better mod.
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  8. #8
    www.eautocad.com
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    Silver
    1998 Camaro Z28

    i think a nice stainless pipe would be swell

  9. #9
    Member ApexVIII's Avatar
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    Red
    1998 Camaro Z28

    Quote Originally Posted by suede View Post
    Save yourself some money and just go down to the local ace hardware and buy a fernco 3 in rubber sewage pipe splice. Works like a charm for like 6 bucks. Honestly it is more for looks than anything and i dout its worth the 1-2 horse for 60-70 bucks
    yea do that, my car came with the SLP one, but if i were to buy it i would do the cheaper one
    M6, Lid, Ported and Polished Throttle Body (By Me!), LT, Custom Catted Y, Electric Cutout, PHB, LCA13.21@108 with a 2.3 60'

  10. #10
    Slow'er'Ass Mr. Luos's Avatar
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    Red Tint Jewelcoat
    2008 Trailblazer SS

    I have a Fernco bellow on mine.
    Appearance mod, doesn't add any HP.

    Also, while I am all for free mods...leave your MAF screen in place if you still have it. While most don't have any issues with the de-screen, you either won't gain anything, or you could go a little lean. The MAF sensors are calibrated for the air being straightened out by the screen.
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  11. #11
    Member Z ROADSTER's Avatar
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    PEWTER
    2002 Z/28 VERT.

    Talking

    Quote Originally Posted by tznutts View Post
    Is it really worth the $70.00? Where do you sit on WRHP gains after;

    Lid
    Smooth bellows
    Ported and polished TB
    Cut back EGR
    De-Screen
    Coolant bypass

    Well , the Z06 seems to get by with 505HP using the stock accordion type bellows , but if you've got $45.00 / $70.00 burning a hole in your pocket just remember , EVERY LITTLE BIT HELPS ! Besides , would SLP lie to you ?

  12. #12
    member since may 2000 nhraformula's Avatar
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    black
    2000 nhra edition formula

    save you money
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

  13. #13
    used and abused at wot ibanez7's Avatar
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    Pewter
    2001 Camaro Z28 M6

    Fernco pipe from the hardware store. Looks clean and alleviates the turbulences the stock accordian one creates.

  14. #14
    Member Z ROADSTER's Avatar
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    PEWTER
    2002 Z/28 VERT.

    There's a reason why the factory uses the accordion style bellows.
    According to the factory dyno's, there is "0"loss
    of power and the accordion style allows the flexibility to compensate for engine torque/movement during full throttle operation . And there is also the ease of installation to be considered.

  15. #15
    CrapMaster samson_420's Avatar
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    Quote Originally Posted by Z ROADSTER View Post
    There's a reason why the factory uses the accordion style bellows.
    the accordion style allows the flexibility to compensate for engine torque/movement during full throttle operation


    I have the smooth bellows. Every time I take the car tom the track the clip for the air lid pops of, since the intake has no room to move.

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

    Quote Originally Posted by samson_420 View Post
    I have the smooth bellows. Every time I take the car tom the track the clip for the air lid pops of, since the intake has no room to move.
    some peoples pops off and others do not. mine does not but a guy i know his does.. i dont wierd!

  17. #17
    Senior Member Danger731's Avatar
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    BOIL it for about and hour then put it on it will mold right up where it needs to be. Don't forget gloves !

  18. #18
    Just me Y2KPewterSS's Avatar
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    Pewter metallic
    2000 Camaro SS

    You can trim it down some and it will fit much better.

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