Walker Exhaust Quiet-Flow SS 56177 Exhaust Muffler Assembly Fits select: 2003-2022 TOYOTA 4RUNNER, 2003-2004 LEXUS GX
Walker Exhaust Quiet-Flow SS 56177 Exhaust Muffler Assembly Fits select: 2003-2022 TOYOTA 4RUNNER, 2003-2004 LEXUS GX
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Quiet-Flow

Walker Exhaust Quiet-Flow SS 56177 Exhaust Muffler Assembly Fits select: 2003-2022 TOYOTA 4RUNNER, 2003-2004 LEXUS GX

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Key item features

  • Durable Construction: Features 100% stainless-steel construction, offering extended longevity compared to aluminized mufflers, and includes an internal drainage system to minimize moisture accumulation.
  • Precise Acoustics: Engineered with OE-style louvered tubes for reduced noise levels and domed heads to diminish radiated noise, ensuring premium factory-style sound quality.
  • Validated Performance: Undergoes acoustic and flow testing to guarantee quality OE-style sound performance.
  • Effortless Installation: Designed as a direct-fit bolt-on replacement with OE-style hangers, brackets, and pipe routings, eliminating the need for specialized fabrication or welding.
  • Broad Compatibility: Fits select 2003-2022 TOYOTA 4RUNNER models and 2003-2004 LEXUS GX models, among others.
  • Combined Muffler: Utilizes a combination muffler type with an aluminized finish.
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Current price is $144.78
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3 out of 5 stars
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Showing 1-1 of 1 review

Sep 21, 2025
anonymous
1 out of 5 stars review

Verified Purchase

Really poorly made

Really poorly constructed. Was leaking heavily at several weld points, as well as from the canister seams. Tried to contact Walker about it 3 times with no response. Would recommend basically any other brand. This muffler was basically garbage.

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