Quiet exhaust noise and keep gases flowing smoothly with the Walker Exhaust Quiet-Flow Muffler Assembly 55717. It installs as a direct-fit, OE-style bolt-on replacement for the 2007-2017 Lexus LS460 (V8-4.6L), so it drops in without specialized fabrication or welding.
- Premium acoustic control: OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for factory-style sound quality versus straight perforated tubes.
- Built to last: internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion, while spun-locked heads and OE-style spot welds add stability and longer service life.
- Resists corrosion: an internal drainage system helps reduce moisture collection.
- Easy to install: a direct-fit bolt-on solution supplied with OE-style pipe routings, brackets and hangers.
This is a steel-bodied, painted, oval combination muffler with an offset inlet and offset outlet; the outlet measures 2.625" OD and uses a 2-bolt welded flange. A gasket or seal is not included — consult the vehicle service information for the correct sealing hardware. Backed by Walker's limited lifetime warranty and the 90-Day Safe and Sound Guarantee. Country of origin: China.
Interchange: Manufacturer part number 55717.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicle does this muffler fit?
It is a direct-fit replacement for the 2007-2017 Lexus LS460 with the V8-4.6L engine. Check the Buyer's Guide tab to confirm fitment for your vehicle.
Is a gasket or seal included?
No. A gasket or seal is not included — consult the vehicle service information for the correct sealing hardware and whether any originals may be reused.
What are the outlet specs?
The outlet measures 2.625" OD and uses a 2-bolt welded flange. Both the inlet and outlet are offset.
Does installation require welding?
No. It is a direct-fit bolt-on replacement supplied with OE-style hangers, brackets and pipe routings, so no specialized fabrication or welding is needed.
What warranty covers this muffler?
It comes with Walker's limited lifetime warranty and the exclusive 90-Day Safe and Sound Guarantee; see Walkerexhaust.com for details.
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