Flowmaster introduces new manifold downpipes for 1965-1967 Chevrolet Caprice, Bel Air, Impala, and Biscayne with the 396 and 427 Big Block Chevy engines and factory manifolds. These 2.50-inch mandrel-bent stainless steel downpipes include factory style 3-bolt flanges, donut gaskets and donut sleeves for an easy installation. The downpipes are covered by our Lifetime Limited Warranty.
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