AP Exhaust 700406 Exhaust Muffler

AP Exhaust 700406 Muffler for Nissan Altima

The AP Exhaust 700406 is an oval, baffled exhaust muffler built with aluminized steel for a direct-fit replacement on select Nissan Altima applications. It is engineered for OE-comparable sound level and uses a center lower inlet with a left upper outlet for the specified fitment.

Key Features

• Direct-fit exhaust muffler for 1998-2001 Nissan Altima
• AP Exhaust part number 700406
• Oval muffler body with baffled internal configuration
• Aluminized steel construction for everyday exhaust service
• OE comparable sound level for a factory-style exhaust tone
• Center lower inlet and left upper outlet layout
• 2-inch inlet and 2-inch outlet pipe connections

Product Details

AP Exhaust 700406 is part of the MSL series and is shaped as an oval muffler with a 16-inch body length, 11-inch body width, and 4.5-inch body height. The overall length measures 30 inches. This muffler uses a single pipe inlet and a spout-style outlet, with a baffled muffler design that supports controlled exhaust flow and a sound level comparable to OE equipment. For buyers searching for a 1998-2001 Nissan Altima muffler replacement, AP Exhaust 700406 provides the fitment and connection layout needed for the listed application.

Common Issues This Muffler Can Address

• Rust damage in the original muffler body
• Exhaust noise from a worn or perforated muffler
• Restricted exhaust flow caused by internal deterioration
• Factory exhaust tone that no longer matches OE sound levels
• Replacement needs for a direct-fit Nissan Altima exhaust muffler

Installation Notes

Fits 1998-2001 Nissan Altima, N/A. Confirm inlet and outlet orientation before installation: center lower inlet, left upper outlet, 2-inch pipe connections. Verify vehicle exhaust routing and mounting points against the existing system before final assembly. AP Exhaust 700406 is a direct-fit MSL/Maximum muffler application for the listed Altima years.

Quality Assurance

AP Exhaust manufactures replacement exhaust components for service applications, and this muffler is built from aluminized steel with a baffled design and OE comparable sound level. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.