AP Exhaust 700456 Exhaust Muffler

AP Exhaust 700456 Muffler for Ford F-150

AP Exhaust 700456 is a direct-fit exhaust muffler built for select Ford F-150 and Lincoln Mark LT applications. It uses an aluminized steel oval body with a baffled HH configuration and OE-comparable sound level for a factory-style exhaust replacement.

Key Features

• Part number 700456
• Aluminized steel body for everyday exhaust service
• Oval muffler shape with 7 in. body height, 9 in. body width, and 28 in. body length
• Overall length: 32 in.
• 2.5 in. inlet and 2.5 in. outlet pipe connections
• Right lower inlet and left upper outlet layout
• Baffled HH muffler design
• OE comparable sound level
• Direct-fit MSL/Maximum muffler application

Detailed Description

AP Exhaust 700456 is engineered for vehicles that use a welded OE exhaust assembly, making it a practical replacement for service work on the Ford F-150 and Lincoln Mark LT. The muffler’s aluminized steel construction, oval case, and baffled internal design support a factory-style exhaust tone while maintaining the 2.5-inch inlet and outlet sizing used in the application. If you are replacing a worn muffler on a 2004-2008 Ford F-150 or 2006-2008 Lincoln Mark LT, this part number 700456 matches the direct-fit MSL/Maximum configuration noted for those vehicles.

Vehicle Fitment

• Fits 2005-2008 Ford F-150, N/A. DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
• Fits 2004-2008 Ford F-150, N/A. DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; (New Body Style)
• Fits 2004-2008 Ford F-150, N/A. DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.; except Heritage Series (Old Body Style)
• Fits 2006-2008 Lincoln Mark LT, N/A. DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.

Common Replacement Uses

• Replacement for a rusted or damaged factory muffler
• Service part for welded OE exhaust assemblies
• Restoration of OE-comparable exhaust sound on Ford F-150 trucks
• Replacement for a leaking or noisy muffler on Lincoln Mark LT models
• Direct-fit exhaust repair when 2.5-inch pipe connections are required

Installation Notes

Verify the vehicle’s body style and model year before ordering, especially for 2004-2008 Ford F-150 applications where Heritage Series and New Body Style coverage differs. This muffler uses a right lower inlet and left upper outlet layout, so exhaust routing should be matched to the original system. Because the OE system was a welded assembly, related exhaust components noted in the vehicle application should be inspected and replaced as needed during service.

Quality Assurance

AP Exhaust builds this muffler as a regular-grade replacement part for direct-fit exhaust service. The MSL series is specified for OE-comparable sound and application-specific fitment on the listed Ford F-150 and Lincoln Mark LT vehicles.