Walker 54988 Exhaust Resonator and Pipe Assembly

Walker 54988 Exhaust Resonator and Pipe Assembly

Walker 54988 is an exhaust resonator and pipe assembly built for OE-style fit, sound, and flow. It is made for the 2013-2018 Acura RDX and uses tuned resonator design to help maintain factory-like exhaust character.

• Fits 2013-2018 Acura RDX
• Part number 54988 for direct application lookup
• Steel pipe construction with aluminized finish
• Round steel resonator body for OE-style packaging
• 1 inlet with 2.25-inch inside diameter
• 1 outlet with 3-bolt welded flange
• Overall length: 46.875 inches
• Muffler body length: 14 inches

OE-Style Fit and Sound

This Walker resonator and pipe assembly is engineered to match original-system fitment and sound characteristics for the Acura RDX. The resonator uses precise tuning to support smooth exhaust flow while helping preserve the factory exhaust note. If you are searching for a Walker 54988 exhaust resonator for 2013-2018 Acura RDX models, this assembly is built around the original equipment layout.

This part cross-references Honda/Acura OE number 18220TX4A02 for the same application.

Common Issues It Can Address

• Exhaust drone or unwanted resonance in the cabin
• Damaged or rusted resonator and pipe sections
• Exhaust leaks at the resonator or flange connection
• Factory exhaust tone that has become louder or uneven
• Fitment problems caused by a worn original assembly

Installation Notes

Verify inlet diameter, outlet flange style, and overall length against the original part before installation. This assembly uses a pipe connection inlet and a 3-bolt welded flange outlet, so alignment with the existing exhaust system is important. For best results, compare the vehicle’s original routing and mounting points on the 2013-2018 Acura RDX before final installation.

Quality Assurance

Walker designs this resonator to fit, perform, and sound like the original system, using tuning methods intended to support OE-style exhaust flow and sound control.