Gibson 99-01 Chevrolet Silverado 1500 Base 4.8L 1-5/8in 16 Gauge Performance Header – Ceramic Coated Handmade

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 in. Heavy Duty Laser Cut Port Flanges- No Warping or Leaking. Premium Gaskets and Hardware included. Backed by a Lifetime Limited Warranty.This Part Fits:YearMakeModelSubmodel1999-2001ChevroletSilverado 1500Base1999-2001ChevroletSilverado 1500LS1999-2001ChevroletSilverado 1500LT1999-2000ChevroletSilverado 2500Base1999-2000ChevroletSilverado 2500LS1999-2000ChevroletSilverado 2500LT2000-2001ChevroletSuburban 1500Base2000-2001ChevroletSuburban 1500LS2000-2001ChevroletSuburban 1500LT2000-2001ChevroletTahoeBase2000-2001ChevroletTahoeLS2000-2001ChevroletTahoeLT1999-2001GMCSierra 1500SL1999-2001GMCSierra 1500SLE1999-2001GMCSierra 1500SLT1999-2000GMCSierra 2500SL1999-2000GMCSierra 2500SLE1999-2000GMCSierra 2500SLT2000-2001GMCYukonSLE2000-2001GMCYukonSLT2000-2001GMCYukon XL 1500SLE2000-2001GMCYukon XL 1500SLT