Overview:88-95 Chevy/GMC Truck, 1500/2500, 92-95 Suburban, 92-94 Blazer/Jimmy: 5.0L/5.7L, Tube Size 1.5" O.D., w/A.I.R.; Black Paint; 50-State Legal header C.A.R.B. EO #D-115-16.Features: 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 Application: 1988-1995 Chevrolet C1500 1988-1995 Chevrolet C2500 1988-1995 GMC K1500 1988-1995 GMC K2500 1988-1995 GMC C1500 1988-1995 GMC C2500 1988-1995 Chevrolet K1500 1988-1995 Chevrolet K2500 1992-1995 Chevrolet C1500 Suburban 1992-1995 GMC K1500 Suburban 1992-1995 GMC C1500 Suburban 1992-1995 GMC C2500 Suburban 1992-1995 GMC K2500 Suburban 1992-1995 Chevrolet C2500 Suburban 1992-1995 Chevrolet K1500 Suburban 1992-1995 Chevrolet K2500 Suburban 1992-1994 Chevrolet Blazer 1989 Chevrolet R2500 Specs: Brand Flowtech C.A.R.B. EO # D-115-16 CARB (California) Compliant Yes CARB EO# D-115-16 Collector Diameter 2.50 inch Emission Code 1 Engine Chevrolet Small Block Header Finish Black Paint Header Style Shorty Primary Tube Dia. 1-1/2 inch Product Type Headers Tube Material Mild Steel Warning California Proposition 65