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Body Length- 7" Overall Length 10" The Porter Muffler race resonator is typically used on high horsepower and racing applications. Our mufflers meet most sanctioned race rules while allowing you to keep your engine’s horsepower. These are perfect for 2-into-1 exhaust or big HP engines Please Note: The internal pass through diameter differs from the body diameter. For more information call us (763)-767-4480 Finish/Color Inlet/Outlet Diameter Body Diameter Part Number Ceramic-Painted Blue 3.00 4.00 PM403007 Ceramic-Painted Blue 4.00 5.00 PM504007 Ceramic-Painted Blue 5.00 6.00 PM605007
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🇺🇸 Ship from USA · On Agora since 2026
$139.95