Gibson 99-01 Chevrolet Silverado 1500 Base 4.8L 1-5/8in 16 Gauge Performance Header - Stainless

Every Gibson Performance Header is Dyno-tuned and engineered to deliver more usable horsepower and torque at low and mid-range RPM highway speeds. Improves engines ability to breathe and cooler operating engine temperature. Designed as a direct replacement for the factory manifolds, using the stock crossover pipe. They are well suited for lowered and raised vehicles, street and off-road. 50 State Street legal. Meets EPA and CARB requirements. Will not affect the factory warranty. No welding required. Uses OEM style connections. 3/8" Heavy Duty Laser Cut Port Flanges- No Warping or Leaking. Premium Gaskets and Hardware included. Backed by a Lifetime Limited Warranty.Installation InstructionsCertificate of OriginWarrantyThis Part Fits: Year Make Model Submodel 1999-2001 Chevrolet Silverado 1500 Base 1999-2001 Chevrolet Silverado 1500 LS 1999-2001 Chevrolet Silverado 1500 LT 1999-2000 Chevrolet Silverado 2500 Base 1999-2000 Chevrolet Silverado 2500 LS 1999-2000 Chevrolet Silverado 2500 LT 2000-2001 Chevrolet Suburban 1500 Base 2000-2001 Chevrolet Suburban 1500 LS 2000-2001 Chevrolet Suburban 1500 LT 2000-2001 Chevrolet Tahoe Base 2000-2001 Chevrolet Tahoe LS 2000-2001 Chevrolet Tahoe LT 1999-2001 GMC Sierra 1500 SL 1999-2001 GMC Sierra 1500 SLE 1999-2001 GMC Sierra 1500 SLT 1999-2000 GMC Sierra 2500 SL 1999-2000 GMC Sierra 2500 SLE 1999-2000 GMC Sierra 2500 SLT 2000-2001 GMC Yukon SLE 2000-2001 GMC Yukon SLT 2000-2001 GMC Yukon XL 1500 SLE 2000-2001 GMC Yukon XL 1500 SLT