Downpipe Kit 65"-68" Pontiac GTO Tempest LeMans 389" 400" V8" dad Muffler Series: Super 10 Series

Muffler Series: Super 10 Series

2007-2010 GMC Sierra 3500 HD

Part Number: 81071

Wheelbase: 138 inch

Downpipe Kit 65"-68" Pontiac GTO Tempest LeMans 389" 400" V8" dad Muffler Series: Super 10 SeriesOverview: These Flowmaster manifold downpipes are specifically designed for all 1965 1968 Pontiac A Body vehicles with either a 389 or 400 c. i. Pontiac engine and are manufactured from 2. 50 inch mandrel bent 409S stainless steel tubing with high quality flanges. These Only fit with manifold castings 9779032 D S and 9779328 P S and include the factory 2 bolt flanges. Covered by our Lifetime Limited Warranty. Features: Improved Horsepower, Torque and