Walker Exhaust SoundFX 18915 Exhaust Muffler Fits select: 2004-2005 CHEVROLET TRAILBLAZER LS/LT, 2002-2005 GMC ENVOY

EASY TO INSTALL -- Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation that doesn't require specialized fabrication and/or welding FACTORY SOUND -- Louvered tubes help reduce radiated noise for factory-style sound quality compared to straight perforated tubes GET MORE MILES FROM YOUR MUFFLER -- Designed and tested to extend muffler life RESISTS CORROSION -- Aluminized steel construction and internal drainage system helps reduce corrosion Additional Features Finish:Aluminized Muffler Type:Combination