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AP Exhaust 700457 Exhaust Muffler

Brand	AP Exhaust 700457
Body Height	4.5
Body Length	21
Body Material	Aluminized Steel
Body Width	11
Grade Type	Regular
Heat Shield Attached	No
Inlet Inside Diameter	2.5
Inlet Location	Center
Inlet Type	Pipe
Muffler Configuration	C/O
Muffler Type	Baffled
Outlet Location	Right Center
Outlet Outside Diameter	2.5
Outlet Type	Flange
Overall Length	34
Series	MSL
Shape	Oval
Sound Level	OE comparable
Tunable	No
Fits	Nissan · 6 vehicles

OE comparable sound. Delivers a factory-like exhaust note.

Baffled design. Helps control exhaust flow and tone.

Aluminized steel body. Resists corrosion for dependable service.

$98.07Free shipping

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AP Exhaust 700457 Muffler for Titan

AP Exhaust 700457 is an oval, baffled exhaust muffler built with aluminized steel for a direct-fit replacement on select Nissan Titan applications. It uses a center 2.5-inch inlet, a right-center 2.5-inch outlet, and an OE-comparable sound level for a factory-style exhaust tone.

Key Features

Part number 700457 from AP Exhaust
Fits 2004-2006 Nissan Titan, N/A
Oval muffler body with baffled internal design
Aluminized steel construction for exhaust system service
Center inlet and right-center outlet layout
2.5-inch inlet and 2.5-inch outlet sizing
OE comparable sound level for a stock-like exhaust note
MSL series muffler with C/O configuration

Product Details

AP Exhaust 700457 is an exhaust muffler for 2004-2006 Nissan Titan trucks where the OE system was built as a welded assembly. The muffler measures 21 inches in body length, 11 inches in body width, and 4.5 inches in body height, with an overall length of 34 inches. Its aluminized steel body and baffled construction are suited for replacing a worn or damaged factory muffler while maintaining an OE comparable sound profile. The AP Exhaust 700457 is a practical choice for Titan owners looking for a direct-fit muffler replacement that matches the original inlet and outlet sizing.

What It Helps Address

Rust-through or corrosion in the original muffler body
Exhaust noise caused by a failing internal baffle
Restricted exhaust flow from a damaged muffler assembly
Factory exhaust replacement needs on 2004-2006 Nissan Titan models
Restoring a stock-style exhaust tone after muffler wear

Installation Notes and Tips

Fits 2004-2006 Nissan Titan, N/A. This application notes that the OE system was a welded assembly, and it is recommended that all parts noted [1] should be replaced. Verify inlet and outlet orientation before installation, since this muffler uses a center inlet and right-center outlet with a flange outlet connection. Confirm exhaust pipe condition and alignment before final assembly. Part number 700457 should be matched to the vehicle’s original exhaust configuration before installation.

Quality Assurance

AP Exhaust 700457 is built as a regular-grade replacement muffler in the MSL series, using aluminized steel and an OE-comparable sound level to support factory-style exhaust service on the Nissan Titan.

This part fits 6 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Body Type	Liters	Cylinders	Position	Notes
2006	Nissan	TITAN	Extended Cab Pickup	5.6L	V8	N/A	DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
2006	Nissan	TITAN	Crew Cab Pickup	5.6L	V8	N/A	DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
2005	Nissan	TITAN	Extended Cab Pickup	5.6L	V8	N/A	DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
2005	Nissan	TITAN	Crew Cab Pickup	5.6L	V8	N/A	DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
2004	Nissan	TITAN	Extended Cab Pickup	5.6L	V8	N/A	DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
2004	Nissan	TITAN	Crew Cab Pickup	5.6L	V8	N/A	DIRECT FIT MSL/MAXIMUM Muffler; OE system was a welded assembly. It is recommended that all parts noted [1] should be replaced.
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