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4.5-inch Inlet, Bullet Muffler, Clamp-On

  • Sold as a pair

Gibson Bullet Marine Mufflers 4.50-in. inlet, 11-in. overall. Tested up to 1200HP with minimal or no power loss. High quality, Stainless construction. OEM style transom mount. Straight through design. Utilizes water to dampen the sound. These silencers were specifically designed for Large displacement motors such as 500HP, 502, 525, 525SC, 575. and up to 1,200hp. Easy bolt-on installation. The Gibson Marine Mufflers have proven to reduce decibel ranges within and to surpass the 88db limits required by the California SAE J2005 Motorboat Sound Law without compromising power.

Shipping: In Stock - Ships in 2-3 days
Was: $1,418.35
Sale: $680.81
Save: 52%
Save: $737.54
FREE Ground Shipping within the Continental US.


  • 4.5" Inlet/ 11" Overall Length
  • Clamp On, J2005 Sound Ordinance Approved
  • Sold as a pair
  • One Year Limited Warranty

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Product Series

Shipping Information

  • Item Requires Shipping
  • 16.0 lbs.
  • W11.0000” x H11.0000” x L25.0000”
  • FREE Ground Shipping within the Continental US.
  • In Stock - Ships in 2-3 days

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