Gibson 310002 Power-Tip Transom-Mount Marine Muffler (4" Inlet/Outlet, Pair)

Vehicle Fitment

• Universal marine application--fits 4" exhaust outlet on boats, pontoons, and personal watercraft

Fitment Notes

• Transom-mount "Power-Tip" style--requires clear access to aft transom, mounts via clamp or OEM muffler clamp system
• Sold as a pair--both starboard and port sides included
• Designed for fresh or salt water use; water cooling dampens sound to meet regulations

Features

• 100% polished stainless steel construction resists corrosion
• 4" inlet and 4" outlet (straight-cut) for unrestricted performance flow
• Water-injected design reduces exhaust sound and emissions per SAE J2005
• OEM-style clamp-on installation--no welding needed
• Compatible with engines up to ~1,200 HP with minimal power loss
• Polished rolled-edge tip delivers sleek, streamlined appearance
• Meets California 88 dB marine sound regulations
• Backed by a one-year limited warranty from Gibson

Specifications

• Inlet/outlet diameter: 4.0"
• Overall length: ~19.4"
• Material: 304 stainless steel, polished
• Mount type: clamp-on transom or OEM muffler clamp
• Sold: pair of mufflers
• Weight: ~8 lb total

Included Components

• 2x Gibson 310002 Power-Tip marine mufflers
• 2x stainless clamp-on mounting collars
• Installation instructions and one-year warranty card

Product Description

The Gibson 310002 Power-Tip marine muffler pair is a polished stainless solution for marine exhaust systems with 4" outlets. Designed to mount at the transom using clamp-on collars, these mufflers utilize a water-injection design that meets California's 88 dB SAE J2005 noise limit while preserving engine performance--even on high-output boats up to 1,200 HP.

Constructed from durable 304 stainless steel and featuring rolled-edge tips, the 310002 offers both corrosion resistance and sleek aesthetics. Installation requires no welding and leverages OEM-style clamps, making it simple for boating enthusiasts looking to upgrade sound control and style.

Sold as a pair for starboard and port configurations, the 310002 mufflers include all necessary hardware and a one-year Gibson warranty. Ideal for marine installations, these mufflers balance compliance, performance, and refined finish in one turnkey package.