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Mac Catback vs. SLP LM

This is a discussion on Mac Catback vs. SLP LM within the External Engine forums, part of the LSx Technical Help Section category; Does anybody have a Mac catback exhaust? I'm stuck between the SLP LM and Mac. Any thoughts....

  1. #1
    Member SS-Power's Avatar
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    Mac Catback vs. SLP LM

    Does anybody have a Mac catback exhaust? I'm stuck between the SLP LM and Mac. Any thoughts.

  2. #2
    Visualize°Design°Create SSwt00SS's Avatar
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    i have the SLP LM exhaust. i like it but it's not for everyone. MAC is more known for MUSTANGS than F-bodies, however, their mid-tube headers for our cars are very nice.

    go to: www.ls1sounds.com and you will be able to hear different cat-back setups. hope this helps...
    2000 SS - The Wicked Witch: °°Cammed 'n Slammed°° 458rwhp/410rwtq
    Quote Originally Posted by Bowtie_girl30
    I was hoping to just hump her up the exhaust cause she is so damn sexy....
    "Never argue with an idiot. They drag you down to their level, then beat you with experience."

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    Pathelogical Liar BlackLT1Z28's Avatar
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    Don't know much about the Mac, but I think the LM is a great deal. One of the cheapest around, mean as hell, and is all stainless. Can't beat it for ~$400.

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    Member SS-Power's Avatar
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    SLP LM does sound a lot better than Mac. Is there any disadvantages with the SLP LM.

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    Visualize°Design°Create SSwt00SS's Avatar
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    '12 Silver SS 1SS
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    Quote Originally Posted by SS-Power View Post
    SLP LM does sound a lot better than Mac. Is there any disadvantages with the SLP LM.
    yes, the most obvious complaint that people with the LM have is that once they go from the factory manifolds to Long Tube headers and ORY that it becomes unbareable (too loud, drone, rasp, etc). that setup again, works for some (like me), but not for others...

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    Quote Originally Posted by SSwt00SS View Post
    yes, the most obvious complaint that people with the LM have is that once they go from the factory manifolds to Long Tube headers and ORY that it becomes unbareable (too loud, drone, rasp, etc). that setup again, works for some (like me), but not for others...
    Probably not going to use headers. I decided to go with the SLP LM. Thanks for your input.

  7. #7
    Senior Member INMY01TA's Avatar
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    Loudmouth is my favorite for stock manifolds/cats.

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    Formulatastic yellowv's Avatar
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    If staying with stock manifolds and cats the LM is a great choice.

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    What is the difference between the SLP LM I and the SLP LM II?

  10. #10
    Pathelogical Liar BlackLT1Z28's Avatar
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    LM1 has the shotgun resonator and the LM2 has the bullet muffler.

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    Which one is the better of the 2??

  12. #12
    Pathelogical Liar BlackLT1Z28's Avatar
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    What do you mean by 'better'?

    The resonator is louder than the muffler, but both will have pretty much the same flow.

  13. #13
    vert 00vertss's Avatar
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    I have the mac exhaust. It is very tamed almost stock like in sound. I have a vert and under acceleration it sounds good.

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