HomeExhaust > MufflersWalker 21665 Exhaust Resonator
Part #: 21665

Walker 21665 Exhaust Resonator

22 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet, Pontiac, and Saturn, Malibu, G6, and Aura
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Overview of Walker 21665 Exhaust Resonator

The Walker 21665 exhaust resonator is designed for direct fit installation on select Chevrolet, Pontiac, and Saturn models. Featuring a durable aluminized steel construction, this resonator helps reduce exhaust noise and improve overall system performance for vehicles like the Chevrolet Malibu, Pontiac G6, and Saturn Aura.

  • Aluminized steel body for corrosion resistance
  • Round resonator shape with 4-inch body width and height
  • Inlet and outlet pipe connections with 2.5-inch and 2-inch inside diameters respectively
  • Direct fit for Chevrolet Malibu, Pontiac G6, and Saturn Aura
  • Center inlet and outlet configuration for straightforward installation
  • Overall length of 27 inches for optimal exhaust flow

Product Details and Specifications

The Walker 21665 exhaust resonator features a round body shape measuring 4 inches in width and height, with a length of 27 inches. Its aluminized steel construction provides resistance to rust and corrosion, extending the life of the exhaust system. The inlet pipe connection has a 2.5-inch inside diameter, while the outlet pipe connection measures 2 inches inside diameter, both configured centrally to ensure proper alignment and fitment. This resonator is designed as a direct fit replacement part, making it compatible with specific models such as the Chevrolet Malibu, Pontiac G6, and Saturn Aura, ensuring a precise and secure installation without the need for modifications.

Applications and Problem Solving

  • Reduces exhaust drone and unwanted noise in the cabin
  • Helps maintain proper exhaust flow and backpressure
  • Replaces damaged or corroded resonators in the exhaust system
  • Improves overall exhaust system durability with aluminized steel construction
  • Ensures compliance with vehicle-specific exhaust specifications

Installation Notes and Tips

Installation of the Walker 21665 exhaust resonator is straightforward due to its direct fit design. Ensure the inlet and outlet pipe diameters match the vehicle’s exhaust piping (2.5-inch inlet, 2-inch outlet). The center inlet and outlet configuration simplifies alignment during installation. It is recommended to inspect adjoining exhaust components for wear or damage and replace as necessary to maintain system integrity. Proper sealing and secure clamping of pipe connections will prevent leaks and ensure optimal performance.

Quality Assurance and Warranty

Walker exhaust components are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The aluminized steel body offers enhanced corrosion resistance for extended service life. While specific warranty details for part number 21665 should be confirmed with the manufacturer or distributor, Walker typically offers limited warranties covering defects in materials and workmanship.

BrandWalker
Part Number21665
Body 1 Height4
Body 1 Length27
Body 1 ShapeRound
Body 1 Width4
Body Height4
Body Length27
Body MaterialSteel
Body Width4
Friction Material ThicknessAluminized
Inlet ConfigurationCenter
Inlet Inside Diameter2.5
Inlet Quantity1
Inlet TypePipe Connection
Outlet ConfigurationCenter
Outlet Inside Diameter2
Outlet Quantity1
Outlet TypePipe Connection
Overall Length2
Resonator ShapeRound
Universal Or Specific FitDirect Fit

This part fits 22 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2012ChevroletMalibu3.6LV6N/AIf welded assembly, replace all required parts
2012ChevroletMalibu2.4LL4N/AIf welded assembly, replace all required parts
2011ChevroletMalibu3.6LV6N/AIf welded assembly, replace all required parts
2011ChevroletMalibu2.4LL4N/AIf welded assembly, replace all required parts
2010ChevroletMalibu2.4LL4N/AIf welded assembly, replace all required parts
2010ChevroletMalibu3.5LV6N/AIf welded assembly, replace all required parts
2010ChevroletMalibu3.6LV6N/AIf welded assembly, replace all required parts
2010PontiacG63.5LV6N/AIf welded assembly, replace all required parts
2009ChevroletMalibu2.4LL4N/AIf welded assembly, replace all required parts
2009ChevroletMalibu3.5LV6N/AIf welded assembly, replace all required parts
2009ChevroletMalibu3.6LV6N/AIf welded assembly, replace all required parts
2009PontiacG62.4LL4N/AIf welded assembly, replace all required parts
2009PontiacG63.5LV6N/AIf welded assembly, replace all required parts
2009SaturnAura2.4LL4N/AIf welded assembly, replace all required parts
2008ChevroletMalibu2.4LL4N/AIf welded assembly, replace all required parts
2008ChevroletMalibu3.6LV6N/AIf welded assembly, replace all required parts
2008ChevroletMalibuLS3.5LV6N/AIf welded assembly, replace all required parts
2008ChevroletMalibu2.4LL4GASN/AIf welded assembly, replace all required parts
2008PontiacG62.4LL4N/AIf welded assembly, replace all required parts
2008PontiacG63.5LV6N/AIf welded assembly, replace all required parts
2008SaturnAura3.5LV6N/Awith Federal Emission System; If welded assembly, replace all required parts
2008SaturnAuraXE2.4LL4N/AIf welded assembly, replace all required parts

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

This part directly replaces or is cross-referenced with the following part numbers:

1820325542577

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.