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Thunderheaders

Discussion in 'Motorcycle Tech Talk' started by Cosmic Tom, Dec 27, 2010.

  1. Cosmic Tom

    Cosmic Tom New Member

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    I'd like to put a thunderheader on my 1973 FLH,and use the original floor boards. what will this entail? Where might I be able to buy a used thunderheader in good condition?
    Cosmic Tom, Dec 27, 2010
    #1
  3. HarleysLR

    HarleysLR Active Member

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    try ebay or craigslist.com
    good used exhaust are hard to find, good luck
    HarleysLR, Dec 28, 2010
    #2
  4. Lucifer

    Lucifer Well-Known Member

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    Might have a hard time finding a used set. just about every 2 into 1 system I've seen for shovels are for the FX's
    American Classic Motors, Inc. THUNDERHEADER 2 INTO 1 EXHAUST HARLEY SHOVELHEAD from American Classic Motors

    You'd have to make up spacers for the stock floorboards and probably make up floorboard brackets. Briefly tried to mount a 2 into 1 on the '78 FLH and gave up for the 2 reasons mentioned above, would have had to space the boards out too far and the brackets were still in the way....also had issues with kicker clearance.
    You'd pretty much have to go with forward controls to make it work.
    Lucifer, Dec 28, 2010
    #3
  5. chucktx

    chucktx Moderator Staff Member

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    if your handy, you could buy pipe and make your own to fit.....possibly....
    chucktx, Dec 28, 2010
    #4

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