The MagnaFlow 19304 manifold front pipes are the head-pipe section for 1967–1974 Dodge Charger 7.2L (440) applications. The kit is designed to be used with Magnaflow System 19303, so it bridges the factory manifolds to that system without custom fabrication. Compared with stock, a matched kit with its own clamps and mounting hardware removes much of the guesswork in building a 2.5-inch path from the manifolds back. Owners describe them as well built, attractive, and fitting well, and one owner reports no signs of corrosion after years on one set.
Fitment is the main variable. Owners report that some pipes needed a flange repositioned and re-welded, so test-fit both sides before final tightening or welding. Owners also note the pipes are designed to be clamped, but can be welded with some skill. Search terms this kit matches include 1967-1974 Charger 440 headpipes, 2.5 inch manifold downpipe, MagnaFlow 19303 compatible manifold pipes, and Mopar B-body exhaust manifold pipes.
The manufacturer's install sheet states the kit is designed for use with MagnaFlow System 19303. The manufacturer's documentation does not confirm compatibility with other systems, so check with the manufacturer before using a different exhaust.
The product name specifies LP manifolds, but details vary across listings, and at least one describes use with HiPo manifolds. Confirm the manifold type with the manufacturer before ordering.
The manufacturer's install sheet uses the supplied clamps and recommends professional installation. Owners on user forums say the pipes are designed to be clamped, though some have had a shop weld them.
The manufacturer's install sheet assumes the factory exhaust has already been removed. Loosely attach each pipe's inlet to its factory manifold using the supplied gaskets and hardware, then connect the outlets to the inlet of the 19303 system with the supplied clamps. Once the position is set, tighten all clamps evenly from front to rear, then recheck the fasteners after 25–50 miles. Spray penetrating lubricant on fasteners and hangers well before you begin, especially on an older Mopar. The sheet lists safety glasses and a hanger tool or pry bar as tools. Over-tightening clamps can break them, and the manufacturer's general guidance is 40–45 ft-lbs for band clamps and 30–35 ft-lbs for U-bolt clamps. Because the manufacturer recommends professional installation, factor in a shop if you lack a lift or the tools to free seized fasteners.
