Walker 21222 Exhaust Resonator and Pipe Assembly

Brand Walker 21222
Body 1 Height 4
Body 1 Length 24.25
Body 1 Shape Round
Body 1 Width 4
Body Material Steel
Finish Aluminized
Inlet Type 2 Bolt Welded Flange
Muffler Body Length 24.25
Outlet Inside Diameter 2.25
Outlet Type Pipe Connection
Overall Length 31.25
Pipe Material Steel
Fits Buick · 7 vehicles

OE-style sound. Precise tuning helps deliver the original system's tone and flow.

Steel construction. Aluminized finish helps resist corrosion for longer service life.

Resonator and pipe assembly. A direct-fit exhaust component for restoring proper exhaust function.

Cross-references Cardone Reman 21-237 for the same application. See all 1.

$96.85Free shipping
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Walker 21222 Exhaust Resonator and Pipe Assembly

Walker 21222 is an exhaust resonator and pipe assembly built for OE-style fit, flow, and sound control. It is engineered for the 2011-2017 Buick Regal with dual exhaust, making it a direct-match option for drivers replacing a worn resonator section on a Buick Regal exhaust system.

  • Steel pipe construction for exhaust system durability
  • Aluminized finish for added corrosion resistance
  • Round steel body with 4 in. height, 4 in. width, and 24.25 in. body length
  • 31.25 in. overall length for application-specific fitment
  • 1 inlet with 2-bolt welded flange connection
  • 1 outlet with 2.25 in. inside diameter pipe connection
  • OE-style tuning to maintain original exhaust sound characteristics

Fitment Details

Fits 2011-2017 Buick Regal, N/A, with Dual Exhaust; If welded assembly, replace all required parts.

This part cross-references Cardone Reman 21-237 for the same application.

Product Overview

Walker 21222 is designed for drivers who need a replacement resonator and pipe assembly that matches the original system layout on the Buick Regal. The steel body and pipe, aluminized finish, and tuned resonator design support proper exhaust routing while helping preserve factory-like sound quality. For Buick Regal exhaust repair work, this Walker resonator assembly provides the dimensions and connection style needed for a direct-fit replacement on the specified dual-exhaust vehicles.

Common Repair Uses

  • Replacing a rusted or damaged resonator section
  • Restoring exhaust tone after a failed factory resonator
  • Repairing a leaking welded exhaust assembly
  • Addressing exhaust noise from a cracked pipe or flange area
  • Returning a Buick Regal exhaust system to original routing and sound profile

Installation Notes

Verify the vehicle is a 2011-2017 Buick Regal with dual exhaust before installation. The inlet uses a 2-bolt welded flange and the outlet uses a pipe connection with a 2.25 in. inside diameter. If the original assembly is welded in place, replace all required related parts during service to complete the repair correctly.

Quality Assurance

Walker states this resonator is tuned to fit, perform, and sound like the original system, using precise tuning methods to support OE-style flow characteristics and exhaust note.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2017BuickRegal2.4LL4N/Awith Dual Exhaust; If welded assembly, replace all required parts
2016BuickRegal2.4LL4N/Awith Dual Exhaust; If welded assembly, replace all required parts
2015BuickRegal2.4LL4N/Awith Dual Exhaust; If welded assembly, replace all required parts
2014BuickRegal2.4LL4N/Awith Dual Exhaust; If welded assembly, replace all required parts
2013BuickRegal2.4LL4N/Awith Dual Exhaust; If welded assembly, replace all required parts
2012BuickRegal2.4LL4N/Awith Dual Exhaust; If welded assembly, replace all required parts
2011BuickRegal2.4LL4N/Awith Dual Exhaust; If welded assembly, replace all required parts
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Cardone Reman — 21-237