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Thread: Internal disk for 2-1?

  1. #1
    BryanO Guest

    Default Internal disk for 2-1?

    Hello,

    I am putting together a 2-1 system for my 03 XLH.
    I would like to use a Universal Internal Disk muffler (p/n# 328-2019) due to what appears to be it's compact size and the look of the turn/out end cap.
    The motor is converted to 1250 cc, stage 2 heads, 10:1 compression, and N4cams.
    I an starting out with an R bike's 2-1 headpipe.
    Would this muffler with it's 3" disks be too resrictive for a 2-1 on a built up motor? ("Maximum silencing" = Maximum restriction)

    And just to kill a flock of birds with one thread:

    How long is this muffler with and without the turn/out end cap?
    How many disks can be installed into it?
    Is the bracket that comes with the "no end cap muffler" permanatly attached?
    Am I sacrificing performance for looks, and I should just go with a SuperMeg?

    Thank You for your patience,
    Bryan O.

  2. #2
    bschultz Guest

    Default

    Quote Originally Posted by BryanO View Post
    Hello,

    I am putting together a 2-1 system for my 03 XLH.
    I would like to use a Universal Internal Disk muffler (p/n# 328-2019) due to what appears to be it's compact size and the look of the turn/out end cap.
    The motor is converted to 1250 cc, stage 2 heads, 10:1 compression, and N4cams.
    I an starting out with an R bike's 2-1 headpipe.
    Would this muffler with it's 3" disks be too resrictive for a 2-1 on a built up motor? ("Maximum silencing" = Maximum restriction)

    And just to kill a flock of birds with one thread:

    How long is this muffler with and without the turn/out end cap?
    How many disks can be installed into it?
    Is the bracket that comes with the "no end cap muffler" permanatly attached?
    Am I sacrificing performance for looks, and I should just go with a SuperMeg?

    Thank You for your patience,
    Bryan O.

    The muffler in question has an 1.75" ID core. For your application I would recommend at least a 2" - 2.5" core to realize the full potential of your build.
    The muffler is 15" long and the end-cap is another 4".
    The slide bracket is welded on prior to chroming.

  3. #3
    BryanO Guest

    Default

    What is the core size for the Megaphone and Supermeg series mufflers?

    Thanks,
    Bryan O.

  4. #4
    bschultz Guest

    Default

    2.5" on the 2:1 systems
    2.0" on the slip-ons

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