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Comply With Noise Ordinances...And Avoid The Hefty Fines

Strict noise ordinances are being enforced all around the country…CMI Sound Elimination System mufflers and transom tips offer proven sound reduction technology that enables most boaters to operate their performance boats in areas where sound emissions are restricted.

These mufflers are engineered to reduce sound without restricting the exhaust or creating unwanted backpressure, which can inhibit the engine from reaching peak performance power.

CMI Sound Elimination System mufflers are made from 304 series stainless steel, and have fewer moving parts than competitive models to ensure long-lasting durability and reliability for nearly any application.

  • Available in both transom mount and clamp on ranging
    in sizes from 4" to 6"
  • Available in a polished stainless steel finish
  • Results may vary, but most experience a drop in sound
    levels as low as 86 decibels (dB)
  • Call us to inquire about our new economically friendly pricing

CMI offers both baffled and non-baffled stainless steel transom tips to fit most marine engine installations. CMI’s baffled transom tips, available in either straight cut or down-turned configurations, include a replaceable internal flapper which acts as a noise reducer and qualifies as a baffle as required by warranty.

For more information, call Custom Marine at 920-720-4225.


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1315 County Road G                    Neenah, WI 54956                    P: 920-720-4225                    F: 920-722-4530

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Custom Marine
1315 County Road G
Neenah, WI 54956