AP Exhaust 700423 Exhaust Muffler

Brand AP Exhaust 700423
Body Height 4.06
Body Length 17
Body Material Aluminized steel
Body Width 10.5
Grade Type Regular
Heat Shield Attached No
Inlet Location Right center
Inlet Outside Diameter 2
Inlet Quantity 1
Inlet Type Pipe
Muffler Configuration O/c-oo
Muffler Type Baffled
Outlet Location Center / left center
Outlet Outside Diameter 1.75
Outlet Quantity 2
Outlet Type Spouts
Overall Length 29.5
Series Msl
Shape Oval
Sound Level Oe comparable
Tunable No
Fits Nissan · 5 vehicles

Baffled design. Helps control exhaust flow for a quieter, OE-comparable sound.

Aluminized steel body. Resists corrosion while keeping the muffler durable.

Oval shape. Fits a compact muffler profile with a regular-grade build.

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AP Exhaust 700423 Muffler for Nissan Altima

AP Exhaust 700423 is a direct-fit exhaust muffler for the 2002-2006 Nissan Altima. It uses an oval, baffled design with OE-comparable sound level and aluminized steel construction for a factory-style replacement on the MSL series platform.

Key Features

  • Direct-fit exhaust muffler for 2002-2006 Nissan Altima
  • AP Exhaust part number 700423
  • MSL series muffler with OE comparable sound level
  • Oval body design with baffled internal construction
  • Aluminized steel body for everyday exhaust service
  • One 2-inch inlet, right center location
  • Two 1.75-inch spout outlets at center / left center
  • Overall length: 29.5 inches

Detailed Description

AP Exhaust 700423 is built as a replacement exhaust muffler for Nissan Altima models from 2002 through 2006. The muffler features a 17-inch body length, 10.5-inch body width, and 4.06-inch body height in an oval shape, with a baffled muffler type that helps maintain an OE comparable sound profile. The aluminized steel body supports standard exhaust replacement needs where a direct-fit MSL muffler is required. If you are searching for an AP Exhaust 700423 muffler for Nissan Altima 2002-2006 or a direct fit MSL/Maximum muffler for Altima, this part matches that application.

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

What It Helps Address

  • Rusted or damaged factory muffler replacement
  • Exhaust noise increase from a failing muffler
  • Restricted exhaust flow caused by internal muffler wear
  • Fitment issues when replacing a direct-fit Nissan Altima muffler
  • Need for an OE-style sound level on a 2002-2006 Altima

Installation Notes and Tips

Verify inlet and outlet locations before installation: this muffler uses a right center 2-inch inlet and center / left center dual 1.75-inch spout outlets. Confirm the vehicle is a 2002-2006 Nissan Altima and compare the existing exhaust routing, hanger positions, and overall muffler dimensions before removal of the original unit.

Quality Assurance

AP Exhaust manufactures this MSL series muffler with aluminized steel construction and a baffled internal design to support consistent replacement performance in the specified Altima applications. AP Exhaust 700423 is a direct-fit exhaust muffler for confirmed vehicle coverage.

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006NissanAltima2.5LL4N/ADIRECT FIT MSL/MAXIMUM Muffler
2005NissanAltima2.5LL4N/ADIRECT FIT MSL/MAXIMUM Muffler
2004NissanAltima2.5LL4N/ADIRECT FIT MSL/MAXIMUM Muffler
2003NissanAltima2.5LL4N/ADIRECT FIT MSL/MAXIMUM Muffler
2002NissanAltima2.5LL4N/ADIRECT FIT MSL/MAXIMUM Muffler