67-74 Mopar A-Body Heade r-Back Exhaust 2.5

The 67-74 Mopar A-Body header-back exhaust system by Pypes Performance Exhaust is designed for enthusiasts restoring or upgrading classic Dodge, Plymouth, and Chrysler A-body platforms from the muscle car era. This complete bolt-on solution enhances engine performance by allowing for improved exhaust flow, which is essential for maximizing horsepower and achieving an authentic performance sound.

Featuring a 2.5-inch diameter tube construction, this system is optimized for mid-block and small-block Mopar engines. The mandrel-bent primary tubes and matched collector are engineered to maximize flow velocity and minimize turbulence, which are critical for extracting horsepower from both carbureted and early fuel-injected engines. The design ensures efficient scavenging without excessive backpressure that can hinder low-end torque.

A-body platform owners will appreciate the direct factory-location bolt-up design, which minimizes fabrication time and ensures proper ground clearance for suspension and cooling components. This system is compatible with various A-body models, including the Duster, Valiant, and Demon, making it a versatile choice for classic car restorations.