AP Exhaust 700342 Exhaust Muffler - Rear

AP Exhaust 700342 Rear Muffler for Impala

AP Exhaust 700342 is a rear exhaust muffler built for direct-fit replacement on select 2000-2005 Chevrolet Impala applications. It uses an oval aluminized steel body with a baffled design and OE-comparable sound level for a factory-style exhaust tone.

Key Features

• Direct-fit rear muffler for 2000-2005 Chevrolet Impala
• AP Exhaust 700342 part number for application matching
• Oval muffler body with aluminized steel construction
• Baffled muffler design with OE-comparable sound level
• Single 2.25-inch inlet and single 2.25-inch outlet
• Right lower inlet and center lower outlet layout
• MSL series muffler with regular grade construction

Product Details

This AP Exhaust muffler is configured for the rear position on the Chevrolet Impala and follows the original system layout for the listed years. The 7-inch body height, 9-inch body width, and 14-inch body length support a compact oval profile, while the 30.88-inch overall length reflects the full assembly dimensions. AP Exhaust 700342 is a practical choice for drivers searching for a rear muffler for 2000-2005 Chevrolet Impala, OE-style exhaust muffler replacement, or aluminized steel muffler with 2.25-inch inlet and outlet sizing.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Issues This Part Addresses

• Rust-through or corrosion in the rear muffler body
• Exhaust noise caused by a damaged or leaking muffler
• Restricted exhaust flow from a failing factory muffler
• Fitment problems when replacing a welded OE muffler assembly
• Loss of factory-style exhaust tone on the Chevrolet Impala

Installation Notes and Tips

Fits 2000-2005 Chevrolet Impala, rear. The OE system was a welded assembly, and AP Exhaust notes that all referenced parts should be replaced for proper service on this application. Verify inlet and outlet orientation before installation, since this muffler uses a right lower inlet and center lower outlet configuration. Confirm the 2.25-inch pipe sizing matches the vehicle exhaust connection points before final assembly.

Quality Assurance

AP Exhaust manufactures this MSL-series muffler with aluminized steel construction and an OE-comparable sound level for a factory-style replacement on the listed Chevrolet Impala applications. AP Exhaust 700342 is built as a direct-fit exhaust muffler for the specified rear-position fitment.