70-74 Mopar E-Body 2.5in Header-Back Exhaust

The 70-74 Mopar E-Body 2.5-inch Header-Back Exhaust from PYPES Performance Exhaust is engineered for classic Mopar enthusiasts seeking to maximize engine efficiency and sound on their first-generation E-Body platforms. This system is designed for restoration builds, street performance applications, and weekend cruisers where bolt-on exhaust upgrades provide immediate gains without requiring engine modifications. Whether you're rebuilding a 1970s Dodge Challenger, Plymouth Cuda, or Barracuda, a quality header-back system transforms both power delivery and driving experience by eliminating restrictive original equipment.

PYPES Performance manufactures this system with mandrel-bent tubing and welded construction to ensure smooth exhaust gas flow from the collector flange through the muffler assembly. The 2.5-inch diameter piping is the ideal balance for small-block Mopar engines, reducing backpressure while maintaining scavenging efficiency across the RPM band. Header-back design means you retain flexibility to pair this with your preferred header choice, allowing customization based on engine configuration and fuel type.

Owners of 1970-1974 E-Body Mopars benefit most from this exhaust when upgrading their vehicles, as it enhances performance and sound. The system's robust construction handles thermal cycling common to classic vehicles, and the measured diameter sizing prevents excessive drone at highway speeds while delivering the aggressive exhaust note enthusiasts expect from vintage Mopar muscle. This exhaust system is particularly advantageous for those looking to improve their classic car's performance without extensive modifications.