These mandrel bent downpipes are the only mandrel bent 2.5" downpipes to connect directly to your stock 351 standard manifolds via a clever ball socket and flange connection. They are very easy to install. Expect 5-8 extra horsepower because of the 2.5" and smooth mandrel bends. These downpipes end right at the crossmember humps so they will easily connect to the Pypes SFM03 header back system without modifications.
Will fit any 64-69 Mustang with 351 CLEVELAND style manifolds.
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