Downpipes, 64-73 Pontiac A-Body, 69-74 Grand Prix, 2.5", w/Factory Cast Manifold

Pontiac Exhaust Downpipes, (Standard Manifolds, 2.5", 2- or 3-Bolt Flanges), by Pypes®

Select the flange pattern that matches the original cast iron Pontiac manifolds

These Pypes® downpipes retain standard Pontiac cast iron exhaust manifolds while connecting to 2.5-inch exhaust tubing. Mandrel-bent stainless steel provides a smooth passage through the bends. Choose the two-bolt DGA10S version or three-bolt DGA13S version to match the manifolds on the engine. The versions are for standard manifolds, not Ram Air or H.O. manifolds. Sold as a pair with the selected flange configuration.

• Standard Pontiac cast iron manifold applications • 2.5-inch mandrel-bent stainless steel • Two-bolt or three-bolt flange versions • Match both installed manifold outlets • Sold as a pair