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muffler best flow

This is a discussion on muffler best flow within the General Help forums, part of the LSx Technical Help Section category; I have a Flowmaster Super 10. i heard flowmaster are bad for hp gains, cause they have bad flow. even ...

  1. #1
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    muffler best flow

    I have a Flowmaster Super 10. i heard flowmaster are bad for hp gains, cause they have bad flow. even i have the super 10. and if not what are the best flowwing muffler out there.

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    Senior Member Too Fast's Avatar
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    Lots of opnions on this, but most everyone agrees that the Flowmaster, at least for the 4th gen stock style exhaust, barely flows better than stock. Sounds nice, but not so good at flow.

    Almost all the other mufflers flow better, from what I've read Flowmasters will gain about 5 HP over stock, and others about 5 more than that.

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    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
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    You will have to do some research on this as folks here use:

    Flowmaster
    Borla
    Magnaflow
    GMMG
    Borla
    Corsa

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    Member 88gtman's Avatar
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    Hooker is also known to be one of the best flowing designs as well. Sounds great and has little to no rasp.

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    Junior Member red98ta's Avatar
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    whats wrong with slp?

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    Smiles for 9.5 Years cammed goat's Avatar
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    The only issue with SLP, from what I have read being here, is their headers hang too low. I run an SLP Loudmouth 1 catback with their PowerFlo X-pipe. I am quite happy. If you want to run a close to straight-pipe system, the SLP LM-1 is the way to go.

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    dbl clutch'n like i shld WICKEDLS1's Avatar
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    dynomax bullets here. have them on the v and had them on the ss too

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    Senior Member Too Fast's Avatar
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    Quote Originally Posted by 88gtman View Post
    Hooker is also known to be one of the best flowing designs as well. Sounds great and has little to no rasp.


    +1. I run the Aerochamber, it is quiet at cruise and sounds nasty when I get on it. I thought it was too quiet for a bit, then I had someone drive my car and I listened as they got on it and I am very happy.

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    Moderator Firebirdjones's Avatar
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    It's all about what you like. Performance differences are next to nil when you funnel it all down a single 3" pipe.

    I personally like the optional 3" SLP dual/dual setup with their transverse muffler, not obnoxious sounding and works as well as any other 3" aftermarket system. Only other single catback I consider is Mufflex, and the only dual setup I consider is Bassani.

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