Kooks 99-06 GM 1500 Series 3in x OEM Out Cat SS Y Pipe Kooks HDR Req

Kooks Headers and Exhaust has been the leader in the High Performance Exhaust Industry for over 50 Years! Since 1962, Kooks takes pride in offering the best headers and complete exhaust systems for your street, race and off-road applications. We have won hundreds of championships and set countless records in the NHRA, IHRA, NMCA, NMRA, NASCAR, NASA, SCCA and many other racing organizations. Now with three generations of family leadership, we are proud to say that all of our products are handcrafted here in the USA and we are proud to still be independently owned and operated. And don't forget, "Get Kookin with KOOKS!"
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Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2002-2005	Cadillac	Escalade	Base
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
1999-2005	Chevrolet	Silverado 1500	Base
2004-2006	Chevrolet	Silverado 1500	Hybrid
1999-2006	Chevrolet	Silverado 1500	LS
1999-2006	Chevrolet	Silverado 1500	LT
2002-2006	Chevrolet	Silverado 1500	WT
2004	Chevrolet	Silverado 1500	Z71 Off-Road
2000-2001,2006	Chevrolet	Suburban 1500	Base
2000-2006	Chevrolet	Suburban 1500	LS
2000-2006	Chevrolet	Suburban 1500	LT
2002-2006	Chevrolet	Suburban 1500	Z71
1999-2001,2006	Chevrolet	Tahoe	Base
2000	Chevrolet	Tahoe	Limited
1999-2006	Chevrolet	Tahoe	LS
1999-2006	Chevrolet	Tahoe	LT
2000,2002-2006	Chevrolet	Tahoe	Z71
2002-2005	GMC	Sierra 1500	Base
2002	GMC	Sierra 1500	HT
2005-2006	GMC	Sierra 1500	Hybrid
1999-2003,2006	GMC	Sierra 1500	SL
1999-2006	GMC	Sierra 1500	SLE
1999-2006	GMC	Sierra 1500	SLT
2002-2006	GMC	Sierra 1500	WT
1999	GMC	Yukon	Denali
2006	GMC	Yukon	SL
1999-2006	GMC	Yukon	SLE
1999-2006	GMC	Yukon	SLT
2006	GMC	Yukon XL 1500	SL
2000-2006	GMC	Yukon XL 1500	SLE
2000-2006	GMC	Yukon XL 1500	SLT