66-74 Mopar B-Body 2.5in Header-Back Exhaust

The PYPES Performance Exhaust 66-74 Mopar B-Body 2.5-inch header-back exhaust system is designed for classic muscle car enthusiasts looking to enhance their vehicle's exhaust flow. This bolt-on solution replaces factory exhaust piping with a modern design that aims to improve engine efficiency. It is compatible with Mopar big-block and small-block engines, specifically for 1966 through 1974 B-Body platforms, including the Dodge Charger, Plymouth Road Runner, and Dodge Coronet.

Constructed with mandrel-bent 2.5-inch diameter tubing, this exhaust system maintains consistent exhaust velocity and minimizes turbulence, which is essential for effective scavenging. The header-back configuration starts at the exhaust manifold outlet and features aluminized steel construction, offering better resistance to rust and corrosion compared to vintage steel while preserving an authentic appearance. The design aims to balance backpressure and flow rate, optimizing performance across the RPM range.

Restoration shops and street rod builders appreciate this exhaust system for its straightforward installation, which does not require extensive modifications to the vehicle. This makes it an ideal choice for enthusiasts looking to enhance their classic Mopar vehicles without compromising original fitment. The system's straight-through muffler design is intended to reduce noise while allowing for efficient exhaust flow.