AP Exhaust 700386 Exhaust Muffler

AP Exhaust 700386 Muffler for Nissan Frontier and Xterra

AP Exhaust 700386 is a direct-fit exhaust muffler for select Nissan Frontier and Nissan Xterra applications from 1999-2004. Built with an aluminized steel body and an oval baffled design, it is sized to match OE-style exhaust routing while delivering an OE-comparable sound level.

Key Features

• Direct-fit muffler for select Nissan Frontier and Nissan Xterra models
• Aluminized steel body for everyday exhaust system service
• Oval, baffled muffler configuration with OE-comparable sound level
• 2-inch inlet and 2-inch outlet with pipe-style connections
• Right-center inlet and left-center outlet layout for listed applications
• AP Exhaust 700386 part number for catalog and fitment lookup

Detailed Description

This AP Exhaust muffler is part of the MSL series and is built in a regular-grade, oval shape with a 22-inch overall length, 18-inch body length, 9-inch body width, and 7-inch body height. The baffled internal design is intended to maintain a factory-like exhaust tone, making it a practical replacement for drivers who want a straightforward repair without changing the character of the exhaust system. AP Exhaust 700386 is listed for Nissan Frontier and Xterra vehicles where the original exhaust system used welded assembly construction, so matching the correct application is important for proper service.

Compatible With select 1999-2004 Nissan Frontier and 2000-2002 Nissan Xterra applications, this muffler supports OE-style replacement needs for trucks and SUVs with 2.0-inch inlet and outlet sizing. The AP Exhaust 700386 designation is useful when cross-checking catalog data for Frontier and Xterra exhaust repair work.

Common Issues This Muffler Can Address

• Rust or corrosion in the original muffler body
• Exhaust noise caused by a damaged or leaking muffler
• Restricted exhaust flow from a deteriorated internal muffler structure
• Fitment problems when replacing a welded OE-style muffler assembly
• Restoring a factory-like exhaust tone on Frontier and Xterra models

Installation Notes and Tips

Verify the vehicle’s year, engine, emissions configuration, and body style against the listed fitment before installation. Because the OE system was a welded assembly on these applications, related exhaust parts noted in the fitment comments should be inspected and replaced as needed to complete the repair correctly. Confirm inlet and outlet orientation, as this muffler uses a right-center inlet and left-center outlet layout.

Quality Assurance

AP Exhaust 700386 is built as a direct-fit replacement muffler for the listed Nissan applications and uses aluminized steel construction for standard exhaust service. No warranty information was provided in the product data.