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    NY muffler law

    It seems NY state passed a new muffler law because of all the complants of loud bikes and cars/trucks....Basics are that bikes made after 1979 must have more or less stock noise levels....
    Not wanting to discuss the law details but the effect it has on my 89 Hawk....The muffler is a bought used carbon fiber D&L canister...It's much louder than stock but not like an open pipe...The engine with this muffler, pods and rejetting ran very well. Friends with more poweful bikes were surprised by the overall performance.....To quiet the bike I made a baffle from a 10 inch length of 1.5 inch OD perforated tubing with a soild cap on one end..I welded this tube inside the 2-1/4 inch inner muffler core. So the exhaust gas first enters the tube, then through the perforations into the muffler core and out the exit.
    The baffle quieted the sound somewhat and gave it a deeper sound without the rap when the throttle is backed off...Out on a road test the power level felt a bit better..but...full throttle acceleration in fourth gear caused noticable clutch slip at over ther 5000 rpm that was not there before the baffle.... Ah, more power and less noise...And a new clutch, lol.




    #2
    Got pics?

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      #3
      Originally Posted by Hillbilly Bike View Post
      It seems NY state passed a new muffler law because of all the complants of loud bikes and cars/trucks....Basics are that bikes made after 1979 must have more or less stock noise levels....
      Not wanting to discuss the law details but the effect it has on my 89 Hawk....The muffler is a bought used carbon fiber D&L canister...It's much louder than stock but not like an open pipe...The engine with this muffler, pods and rejetting ran very well. Friends with more poweful bikes were surprised by the overall performance.....To quiet the bike I made a baffle from a 10 inch length of 1.5 inch OD perforated tubing with a soild cap on one end..I welded this tube inside the 2-1/4 inch inner muffler core. So the exhaust gas first enters the tube, then through the perforations into the muffler core and out the exit.
      The baffle quieted the sound somewhat and gave it a deeper sound without the rap when the throttle is backed off...Out on a road test the power level felt a bit better..but...full throttle acceleration in fourth gear caused noticable clutch slip at over ther 5000 rpm that was not there before the baffle.... Ah, more power and less noise...And a new clutch, lol.


      There is a lot of mis information going around about this law. Had an inspection station actually fail one of my guys trucks over rumors he heard about it. . . I had to call 69Falcon and be like yo, we need stock pipes...
      But.... Chuck read it..

      Apparently there was a lot proposed that never made it into the final copy..


      The only real change this law brings is that it allows a police officer to write larger fines for illegally loud vehicles.


      But either way, glad you came up with something you are stoked on!
      Last edited by 6; 05-13-2022, 08:59 AM.
      Don't spend money and buy, spend time and learn.

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        #4
        Originally Posted by ParcNHawk View Post
        Got pics?
        No, I thought about pics after it was on the bike...I will do a drawing..

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          #5


          Sex Worker person, what is illegally loud? The existing said to can't modify the exhaust to make louder..So the language is the same?

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            #6
            Baffle
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              #7
              Originally Posted by Hillbilly Bike View Post

              Sex Worker person, what is illegally loud? The existing said to can't modify the exhaust to make louder..So the language is the same?
              https://www.semasan.com/legislative-...se-legislation

              SEMA broke it down pretty well.

              If your exhaust was legal before the law, it was legal after the law. ​​​​
              Don't spend money and buy, spend time and learn.

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