These 16 gauge Stainless Steel Mandrel Bent downpipes fit directly onto factory cast iron Manifolds. Flanges are already installed. Pypes systems and accessories are fabricated using stainless steel materials that will provide their owners with long term service and satisfaction and Pypes products are backed by a limited lifetime warranty! Mandrel Bent 16 Gauge Stainless Steel Fits Directly Onto Factory Cast Iron Manifolds Pre-Installed 3-Bolt Flanges Lifetime Warranty 2.5 Inch Exhaust Manifold Downpipe Material: 409 Stainless Steel Sold As: Pair MPN: DCC10S Specifications Brand Pypes Performance Exhaust Manufacturer's Part Number DCC10S Part Type Exhaust Pipes, Intermediate Pipes Product Line Pypes Stainless Steel Exhaust Downpipes Outside Diameter (in) 2.500 in. Tubing Material 409 stainless steel Tubing Finish Natural Catalytic Converter Included No Gaskets Included No Hardware Included No Mandrel-Bent Yes Quantity Sold as a pair Notes Fits applications with original 2.5 in. ram horn manifolds. Fitment 1981 Chevrolet Corvette 1980 Chevrolet Corvette 1979 Chevrolet Corvette 1978 Chevrolet Corvette 1977 Chevrolet Corvette 1976 Chevrolet Corvette 1975 Chevrolet Corvette 1974 Chevrolet Corvette 1973 Chevrolet Corvette 1972 Chevrolet Corvette 1971 Chevrolet Corvette 1970 Chevrolet Corvette 1969 Chevrolet Corvette 1968 Chevrolet Corvette 1967 Chevrolet Corvette