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05-22-2017, 02:58 PM
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#5 |
 Join Date: Dec 2014
Posts: 738
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To the BEST OF MY KNOWLEDGE the only way to increase power is to lower back pressure , thatmeans MORE noise! That's on racing motorcycles. I assume that it works the same but I'm no expert on scooters.
  Irish  P.S. I used to run straight pipes (with engine tuned to them) at the drag strip but there's NO noise police there! Last edited by Irish; 05-22-2017 at 03:02 PM. Reason: Add PS. |
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