This is a 50-State Legal header C.A.R.B. EO #D-115-16. Sturdy 16 gauge tubing Extra thick 3/8†flanges for a leak-free seal Designed as a direct fit replacement for OEM exhaust manifolds Will accommodate all emission control devices Bolts directly to factory head pipe Complete with premium gaskets and hardware Fits Select: 1999-2002 CHEVROLET SILVERADO 8 Cyl 5.3 L 1999-2000 GMC NEW SIERRA 8 Cyl 5.3 L 2001-2002 GMC NEW SIERRA K1500 8 Cyl 5.3 L and more - add your vehicle to our fit widget to check
