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Hole Saw Mod?

Discussion in 'Motorcycle Tech Talk' started by RegnisnuM, Feb 9, 2012.

  1. RegnisnuM

    RegnisnuM New Member

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    I have an 03 honda shadow ACE with stock pipes 2 to 1. I've been looking around the internet and seeing a lot on the hole saw mod. I'm not a big fan of the sound it makes now and want something a little deeper and louder. The way I saw to do it was to stick a sharpened piece of rebar into the end of each pipe and banging a hole into the baffle. There's also some other steps including drilling extra holes in the back plate at the end of the exhaust and widening them, but I'm wondering if I just do the first part do you think that would make a difference without causing performance issues or having to re jet?

    Anyone done this before?

    Thank you,

    REG
    RegnisnuM, Feb 9, 2012
    #1
  3. cowboy

    cowboy Moderator Staff Member

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    That's one of main sections of weld that helps hold it all in , I did the set on my e glide along with driving the rest out , I ended up with 3-1/2 in hollow chrome pipes but I put some big city thunder baffles in good sound but kinda loud
    cowboy, Feb 9, 2012
    #2
  4. cowboy

    cowboy Moderator Staff Member

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    Ps cobra make some good pipes for the Honda s
    cowboy, Feb 9, 2012
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  5. RegnisnuM

    RegnisnuM New Member

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    Yea but I'm looking for a cheaper easy way out. Lol. I don't think I want to drill the holes in the back plate but I might try putting a hole in the baffle and see how that sounds.
    RegnisnuM, Feb 10, 2012
    #4
  6. cowboy

    cowboy Moderator Staff Member

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    On a Harley muffler a 1/2 in steel pipe will drive right down the center :)
    cowboy, Feb 10, 2012
    #5
  7. hotroadking

    hotroadking Super Moderator Staff Member

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    FWIW I've never heard a metric bike with this done
    that sounds good, they just sound louder not better
    it's the V angle on twins that helps create that sound
    people chase.

    If you can find a set of used Vance and Hines pipes, longshots
    are the best they tend to help deepen and richen the sound
    otherwise the odd V angle tends to create a loud raspy sound
    that is not very good.

    Might look for a used set of your stock pipes to do it to
    for free or cheap just to test the sound...

    On early Evo EFI bikes guys would drive out the
    center of the baffle and if it wasn't done right
    when they let off the throttle it sounded like
    they needed to grease the muffler bearings LOL
    Squeeeek Squeeek Squeeek
    hotroadking, Feb 10, 2012
    #6
  8. alex the dog

    alex the dog Active Member

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    You're absolutely right HRK. I tried punching a hole thru the center of the baffle on my '08 stock pipes, and it sounded like crap. I wasn't too concerned about keeping the orig. pipes if they were ruined, and was ready to buy new pipes, but I probably could have sold them if they were left alone.

    I tried this on a Honda VFR1000 too, but it sounded lousy so I made a plate to rivet over the holes I made. Save your time and effort--just buy some Samson's.

    By the way, that Shadow will never have the sound your looking for. It's the design of the motor that makes it sound crummy.
    alex the dog, Feb 10, 2012
    #7

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