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Gibson Performance Exhaust

Gibson Bullet Stainless Superflow Marine Mufflers

5.0 out of 5 stars 4 Customer Reviews

These Gibson Superflow Bullet marine mufflers are proven to reduce decibel range to within the 88 dB required by the California SAE J2005 Sound Law, without compromising power. Features include: * Tested on 496, 525, and 575 hp * Flow-tested to ensure maximum effectiveness * Straight-through design * No loss in horsepower * Clamp-on, hassle-free installation utilizing Gibson's exclusive clampless design

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Gibson Bullet Stainless Superflow Marine 304 Stainless Steel 4 Inch Muffler 310001

Made in the USA Gibson Bullet Stainless Superflow Marine 304 Stainless Steel 4 Inch Muffler 310001

Gibson Bullet Stainless Superflow Marine 304 Stainless Steel 4 Inch Muffler 310001

Muffler, Bullet, Superflow, Marine, Round, Stainless, Polished, 4 in. Center Inlet/Outlet, 9.25 in., Pair

Part Number: GIB-310001

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Dec 5, 2025 if ordered today

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Estimated Ship Date: Dec 5, 2025 if ordered today

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