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  1. #1
    Nuclear Cat Will End All LS1Powerhouse's Avatar
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    Apr 2007
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    Edwardsville, IL (So. IL Univ. of Edwardsville)
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    Mystic Teal
    1999 Camaro Z28 - A4

    SLP vs. Magnaflow

    Which way should i go? Theres only about a $25 difference between the two so I'm looking for some feedback on people who have used both.

    Thanks
    Matt

  2. #2
    Slow'er'Ass Mr. Luos's Avatar
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    Aug 2005
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    Thornton, CO
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    23,773

    Red Tint Jewelcoat
    2008 Trailblazer SS

    Magnaflow. Hands down.

  3. #3
    11's HERE I COME INIT2WIN's Avatar
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    Apr 2007
    Location
    Louisiana
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    86

    Pewter
    2002 Camaro Z28 A4

    Depends on how loud you want it to be. I would go for the SLP loud mouth myself but the magna flow has a good sound to it and some nice tips that come on the system.

  4. #4
    Visualize°Design°Create SSwt00SS's Avatar
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    Dec 2005
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    DFW
    Posts
    9,285

    '18 CTS-V
    '13 ZL1

    I have the SLP LM. if loud is what you want even after going to LT's/ORY setup down the road then get it...

    If you want a little more 'tamed' sound then go magnaflow...

    links in my sig will let you know what SLP LM sounds like with LT's/ORY...

    also, checkout www.ls1sounds.com for more exhaust systems/setups...
    2018 CTS-V: °°668rwhp/658rwtq°°
    2013 ZL1: °°590rwhp/576rwtq°°
    "Never argue with an idiot. They drag you down to their level, then beat you with experience."

  5. #5
    STAY PUFT thecorrectformula's Avatar
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    Jun 2007
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    Delaware, OH
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    36
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    678

    Navy Blue Metallic
    98 Formula

    In my opinion SLP is loud but its a more raspy tone. Magnaflow is a deeper tamer tone. I like deep tones and the more tame sound so I'm a fan of Magnaflow but you can't go wrong with either.

  6. #6
    Junior Member Buckeye221's Avatar
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    May 2007
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    Langley AFB Virginia
    Age
    39
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    27

    Red
    1998 Camaro Z28

    I recently put the magnaflow on my z and I love it. My father has a loudmouth II on his goat and it sounds really good also. I noticed his idles a little louder. If you are looking for really loud go with the loudmouth I. If you just want a good sound without attracting cops the ldmth II or magnaflow will do.

  7. #7
    Member
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    Mar 2007
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    Maryland
    Posts
    157

    Blue
    99 Z28

    I vote Magnaflow. That's what I have, and I love it. Although, last time I heard it, it was with stock manifolds/y, and now I've got a set of SLP LT's and ORY goin on it.

  8. #8
    ORNGP33L 1BADDLS1's Avatar
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    Long Island, NY
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    39
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    415

    Hugger Orange
    1999 Camaro Z-28

    i have magnaflow on the car for right now
    like the sound

    just be aware they don't use 304 stainless like they claim to
    its cheap stainless & it will rust as everyone else's does (the piping that is - tips & muffler are mint)

    FWIW the SLP Dual/Dual which came on my 02 SS has yet to accumulate a spot of rust (65,000 miles)

  9. #9
    ORNGP33L 1BADDLS1's Avatar
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    Hugger Orange
    1999 Camaro Z-28

    Quote Originally Posted by cavpat View Post
    and now I've got a set of SLP LT's and ORY goin on it.
    sell the SLP LT's - you'll regret putting them in

  10. #10
    Junior Member
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    Jun 2007
    Location
    Virginia
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    49

    White
    1998 TA

    I think the SLP is either a love or hate system. The magnaflow seems to appeal to a wider range. I personally have a LM2 and I think it's obnoxious sounding in the car due to the drone. Tried to change bullets to make it better but not with a great deal of success. The size/space constrictions of the bullet location just won't accomodate a large enough muffler to alter the sound much.

  11. #11
    STAY PUFT thecorrectformula's Avatar
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    Jun 2007
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    Delaware, OH
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    36
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    678

    Navy Blue Metallic
    98 Formula

    I just installed LT's and an ORY with my magnaflow and it sounds amazing. Not to loud that its abnoxious but it has a deep tone that sounds perfect to me.

  12. #12
    member since may 2000 nhraformula's Avatar
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    54
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    6,932

    black
    2000 nhra edition formula

    magnaflow!

    the hooker catback sounds great also
    2000 nhra edition formula
    a few bolt ons, 379 rwhp
    11.96 @113.25

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