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Walker 21684 Quiet FlowSS Domestic Muffler Review

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Average

Revainrating 3.5 out of 5  
Rating 
3.7
🌫️ Exhaust & Emissions, 🛠️ Replacement Parts

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Description of Walker 21684 Quiet FlowSS Domestic Muffler

CORROSION RESISTANT STAINLESS STEEL -- The only broad-market muffler with 100% stainless-steel construction that delivers longer life versus aluminized mufflers while an internal drainage system reduces moisture collection. EASY TO INSTALL -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn't require specialized fabrication and/or welding. 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 provide stability and longer service life. PREMIUM ACOUSTIC CONTROL -- OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes. DESIGN VALIDATED -- Acoustic and flow tested for quality OE-style sound you can count on.

Reviews

Global ratings 2
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  • 4
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Type of review

Revainrating 4 out of 5

Silent Savior for Automotive Tailpipes!

The Walker 21684 Quiet FlowSS Muffler is a game-changer in automotive exhaust systems. With its stainless steel construction and specially designed chambers, the muffler brings down noise to a peaceful hum .The installation is a breeze, making it an ideal choice for a DIY car makeover project. The only downside is the premium price tag that may make some car enthusiasts hesitant to buy it..

Pros
  • Reduces engine noise for a quieter ride.
Cons
  • May decrease overall horsepower and fuel efficiency due to increased back pressure.

Revainrating 3 out of 5

Replacement Muffler for the Yukon Denali

Installed on my '08 Yukon Denali expecting it to be quieter than the stock muffler or equivalent but it wasn't. Actually louder and has a very annoying hum at highway speeds. This replaces the expansion tube and resonator assembly. Walker's claim that it meets standard noise levels doesn't hold true in my testing. The noise level in the cabin before the replacement was 73 dB at a speed of 100 km / h, and now it is 75 dB. I'll be back in stock soon.

Pros
  • Exhaust and Emissions
Cons
  • No Auto