Walker Exhaust Quiet-Flow SS 21577 Exhaust Muffler Fits select: 2007-2013 CHEVROLET SILVERADO, 2008-2013 GMC SIERRA

The only broad-market muffler with 100% stainless-steel construction, Walker Quiet-Flow SS mufflers feature precision fit, superior flow and OE-style sound. Quiet-Flow SS mufflers are available for most domestic and import vehicles.

• BUY WITH CONFIDENCE -- Comes with Walker's limited lifetime warranty and exclusive 90-Day Safe and Sound® Guarantee. Visit Walkerexhaust.com for details.
• 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
• DESIGN VALIDATED -- Acoustic and flow tested for quality OE-style sound you can count on
• 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
• 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

Additional Features

• Finish:Aluminized
• Muffler Type:Combination

Fits Select:
2007-2013 CHEVROLET SILVERADO 8 Cyl 5.3 L
2008-2013 GMC SIERRA 8 Cyl 5.3 L
2007 GMC NEW SIERRA 8 Cyl 5.3 L
2007 CHEVROLET SUBURBAN 8 Cyl 6 L
2007 CHEVROLET AVALANCHE 8 Cyl 6 L
2007 GMC YUKON XL 8 Cyl 6 L
and more - add your vehicle to our fit widget to check

Manufacturer part number	21577
Vehicle make	Chevrolet; GMC
Vehicle model	Avalanche; Silverado 1500; Suburban 1500; Sierra 1500; Yukon XL 1500
Vehicle year	2007
Inlet diameter	3 in
Outlet diameter	2.75 in
Muffler type	Absorber Muffler
Material	Stainless Steel
Brand	Walker
Vehicle fitment type	Specific
Automotive parts division	Direct Replacement
Features	Easy Installation
Finish	Aluminized
Vehicle type	Truck
Model	21577
Size	30.500
Weight	15.35
Count	1
Has written warranty	No
Compatible cars	2007-2007 Chevrolet Avalanche; 2007-2008 Chevrolet Silverado 1500; 2007-2007 Chevrolet Silverado 1500; 2008-2008 Chevrolet Silverado 1500; 2009-2013 Chevrolet Silverado 1500; 2007-2007 Chevrolet Suburban 1500; 2007-2008 GMC Sierra 1500; 2007-2007 GMC Sierra 1500; 2008-2008 GMC Sierra 1500; 2009-2013 GMC Sierra 1500; 2007-2007 GMC Yukon XL 1500