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Cats

This is a discussion on Cats within the General Help forums, part of the LSx Technical Help Section category; I have to get some in oder to pass emmisions here. What should I do? Best to get, how much ...

  1. #1
    Senior Member kenro23's Avatar
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    Cats

    I have to get some in oder to pass emmisions here. What should I do? Best to get, how much restriction do they cause, etc...?
    Suspension: Lower control arms (Spohn), Drive shaft safety loop, Torque arm (Edlebrock), Strut tower brace, Panhard Bar (BMR)

    Under the Hood: Smooth bellows, Lid, Catch can, LT Headers, ORY, AIR/EGR delete, Poly engine/transmission mounts,

    Exterior: Painted brake calipers (Red), Halo “Spyder” Headlights w/matching parking/turn signals (Black)

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    Senior Member JayTA98's Avatar
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    Mean Black
    1998 Trans Am

    I alot of people get the high flow short ones. That's what I'm getting when I do my headers in the future.

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    Senior Member kenro23's Avatar
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    From where?

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    Junior Member whitdog54's Avatar
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    Arctic White
    2000 Camaro Z28

    MagnaFlow 94109 - MagnaFlow Universal Catalytic Converters - Overview - SummitRacing.com something like this will work, but you may need to tune for post cat 02 sensor codes because the sensor will see tis flowing more then stock. if you dont have visual CAT checks, just delete them and get the codes tuned out

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    ʢ ൧ ൨ ൩ ൪ ൫ ൬ ൭ ൮Ր Ց Ւ Փ Smittro's Avatar
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    White
    2008 Hummer H3

    ebay

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    Senior Member JayTA98's Avatar
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    Mean Black
    1998 Trans Am

    Quote Originally Posted by Smittro View Post
    ebay
    yep

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    Senior Member kenro23's Avatar
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    Ima look into it. I think i can find a shady inspection place. Gonna do that route and pay a lil more instead of the cats.

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    Black & Blue
    '02 WS.6 / '07 Suburban

    Magnaflow makes high flow cats. On our car, I went with the Kooks catted Y-pipe when I did the exhaust.

  9. #9
    Senior Member kingls1's Avatar
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    Quote Originally Posted by pajeff02 View Post
    Magnaflow makes high flow cats. On our car, I went with the Kooks catted Y-pipe when I did the exhaust.
    Jeff, with the cats do you have a rasp sound around 3,000rpms, I put on resonators instead of the cats but have a rasp coming from the y pipe area at that rpm, the Magna Flow sounds bad ass in the back but I hear that and don't like it, considering putting on Magna flow cats, but if the sound don't change no sense in spending the money

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    Black & Blue
    '02 WS.6 / '07 Suburban

    No rasp at all. Sounds great both through the muffler or with the cutout open.

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    Your friendly policeman FinZ28's Avatar
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    Bright Rally Red
    2001 Chevy Camaro Z28

    I think the cats will help if you have any rasp without cats currently. I know my car can sound pretty raspy when the revs come down from about 3k. My car doesn't have cats and has a Magnaflow exhaust. I love the way it sounds otherwise.
    2001 Chevy Camaro Z28 A4
    SLP cold air intake/lid, SLP smooth bellow, Pacesetter LT's, ORY, Magnaflow exhaust, BMR STB, adjustable Panhard rod, SFC's, LCA's, 1LE sway bars, cross-drilled rotors

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    Senior Member kingls1's Avatar
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    Quote Originally Posted by FinZ28 View Post
    I think the cats will help if you have any rasp without cats currently. I know my car can sound pretty raspy when the revs come down from about 3k. My car doesn't have cats and has a Magnaflow exhaust. I love the way it sounds otherwise.
    I agree the sound is awesome but that sound has to be no cat issue, I will leave it for now but pretty sure over winter going to put high flow cats on, need to replenish the T-A account it's looking a little dry

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    Senior Member kenro23's Avatar
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    Man I LOVE the way mine sounds now. Would hate to ruin that in any way. Which is why I plan on finding someone that will take a lil more money than check my car thoroughly. If I have to get em, obviously I will but man I hope not.

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