Gibson Marine Muffler for Boats 4-Inch Inlet Stainless Steel Power Tip

Gibson Marine Muffler for Boats — 4" Inlet Stainless Steel Power Tip Reduce noise without sacrificing performance. The Gibson Marine Muffler with a 4-inch inlet and stainless steel rolled-edge power tip delivers proven sound attenuation for recreational and performance boats while preserving engine power. Key Features Premium stainless steel construction for corrosion resistance and long service life in marine environments. 4" inlet / 4" overall — OEM-style fit for transom or clamp-on mounting. Rolled-edge power tip for a clean finish and improved exhaust flow. Water-dampened noise reduction design minimizes exhaust noise using water injection. Bolt-on installation for quick, easy fitment without major modifications. Performance & Compliance Tested to deliver minimal or no power loss, the Gibson Marine Muffler reduces decibel output and has been shown to meet or exceed the 88 dB limit required by California SAE J2005 motorboat sound law—keeping your vessel quieter while maintaining peak performance. Why Choose Gibson Gibson offers marine-specific mufflers engineered for durability, effective sound control, and straightforward installation. Ideal for boat owners seeking a reliable, high-quality solution to lower exhaust noise without compromising engine output.