Flowmaster introduces our new manifold downpipes for 1964-1966 Ford Mustangs with 289 c.i. engine. These 2.50-inch mandrel-bent 409S stainless steel downpipes include the 2-bolt flanges, donut gaskets and donut sleeves. Designed to mate up with Flowmaster exhaust system #17273 or #817273. Covered by our Lifetime Limited Warranty.
