These BBK Performance shorty tuned Length exhaust Headers are designed and constructed as direct fit replacements for all 99-04 GM Truck and SUV 4.8L and 5.3L applications. Each header is manufactured with 1-5/8 in. CNC mandrel bent tubing that offers unrestricted exhaust flow for increased horsepower and torque over factory OEM manifolds. BBK tuned Length headers offer improved scavenging waves for better combustion, which leads to improved performance and fuel economy over stock or equal Length headers. As with all BBK Performance exhaust headers they feature a 3/8 in. laser cut flange for additional strength and a guaranteed leak free fit. All headers are robotically and precision hand welded and then pressure tested to ensure years of reliability and performance in the real world. All BBK exhaust headers are available in a Titanium Ceramic or polished silver ceramic coated finish and include new exhaust header gaskets, header bolts and hardware to complete the installation. IMPORTANT NOTE: On The passenger side OE Manifold you must remove the factory OE doughnut gasket and reinstall on the BBK passenger side header so the mid pipe will bolt up and seal

This Part Fits:

Year	Make	Model	Submodel
2004-2007	Buick	Rainier	CXL
2004-2005	Buick	Rainier	CXL Plus
2002-2005	Cadillac	Escalade	Base
2013	Chevrolet	Avalanche	Black Diamond LS
2013	Chevrolet	Avalanche	Black Diamond LT
2013	Chevrolet	Avalanche	Black Diamond LTZ
2007-2012	Chevrolet	Avalanche	LS
2007-2012	Chevrolet	Avalanche	LT
2007-2012	Chevrolet	Avalanche	LTZ
2002-2005	Chevrolet	Avalanche 1500	Base
2005-2006	Chevrolet	Avalanche 1500	LS
2005-2006	Chevrolet	Avalanche 1500	LT
2002-2003	Chevrolet	Avalanche 1500	North Face
2002-2003	Chevrolet	Avalanche 1500	On Road Edition
2003	Chevrolet	Avalanche 1500	WBH
2004-2006	Chevrolet	Avalanche 1500	Z66
2002-2006	Chevrolet	Avalanche 1500	Z71
2009-2012	Chevrolet	Colorado	LT
1999-2005	Chevrolet	Silverado 1500	Base
2004-2006	Chevrolet	Silverado 1500	Hybrid
1999-2013	Chevrolet	Silverado 1500	LS
1999-2013	Chevrolet	Silverado 1500	LT
2007-2013	Chevrolet	Silverado 1500	LTZ
2002-2013	Chevrolet	Silverado 1500	WT
2010-2013	Chevrolet	Silverado 1500	XFE
2004	Chevrolet	Silverado 1500	Z71 Off-Road
2007	Chevrolet	Silverado 1500 Classic	Hybrid
2007	Chevrolet	Silverado 1500 Classic	LS
2007	Chevrolet	Silverado 1500 Classic	LT
2007	Chevrolet	Silverado 1500 Classic	WT
1999-2000	Chevrolet	Silverado 2500	Base
1999-2000	Chevrolet	Silverado 2500	LS
1999-2000	Chevrolet	Silverado 2500	LT
2004	Chevrolet	SSR	Base
2000-2001,2006	Chevrolet	Suburban 1500	Base
2000-2013	Chevrolet	Suburban 1500	LS
2000-2013	Chevrolet	Suburban 1500	LT
2007-2013	Chevrolet	Suburban 1500	LTZ
2004-2006	Chevrolet	Suburban 1500	Z71
2000-2001,2006	Chevrolet	Tahoe	Base
2000-2013	Chevrolet	Tahoe	LS
2000-2013	Chevrolet	Tahoe	LT
2007-2013	Chevrolet	Tahoe	LTZ
2007-2013	Chevrolet	Tahoe	PPV
2012-2013	Chevrolet	Tahoe	SSV
2003-2006	Chevrolet	Tahoe	Z71
2008	Chevrolet	Trailblazer	Base
2006-2007	Chevrolet	Trailblazer	LS
2006-2009	Chevrolet	Trailblazer	LT
2003-2006	Chevrolet	Trailblazer EXT	LS
2003-2006	Chevrolet	Trailblazer EXT	LT
2003-2004	Chevrolet	Trailblazer EXT	North Face
2009-2012	GMC	Canyon	SLE
2009-2012	GMC	Canyon	SLT
2005-2009	GMC	Envoy	Denali
2005-2006	GMC	Envoy XL	Denali
2003-2005	GMC	Envoy XL	SLE
2003-2005	GMC	Envoy XL	SLT
2004-2005	GMC	Envoy XUV	SLE
2004-2005	GMC	Envoy XUV	SLT
2002-2005	GMC	Sierra 1500	Base
2002	GMC	Sierra 1500	HT
2005-2006	GMC	Sierra 1500	Hybrid
1999-2003,2006-2013	GMC	Sierra 1500	SL
1999-2013	GMC	Sierra 1500	SLE
1999-2013	GMC	Sierra 1500	SLT
2002-2013	GMC	Sierra 1500	WT
2010-2013	GMC	Sierra 1500	XFE
2007	GMC	Sierra 1500 Classic	Hybrid
2007	GMC	Sierra 1500 Classic	SL
2007	GMC	Sierra 1500 Classic	SLE
2007	GMC	Sierra 1500 Classic	SLT
2007	GMC	Sierra 1500 Classic	WT
1999-2000	GMC	Sierra 2500	SL
1999-2000	GMC	Sierra 2500	SLE
1999-2000	GMC	Sierra 2500	SLT
2006	GMC	Yukon	SL
2000-2013	GMC	Yukon	SLE
2000-2013	GMC	Yukon	SLT
2006	GMC	Yukon XL 1500	SL
2000-2013	GMC	Yukon XL 1500	SLE
2000-2013	GMC	Yukon XL 1500	SLT