67-74 Mopar A-Body 2.5in V8 Exhaust System w/XPip

The PYPES Performance Exhaust 67-74 Mopar A-Body 2.5-inch V8 Exhaust System with X-Pipe delivers a complete header-back solution engineered for classic A-Body platforms. This stainless steel system combines proven performance design with the durability required for street-driven classics that demand both reliability and sound character. The 2.5-inch diameter piping and matching tip sizing maintain optimal scavenging for V8 engines in this era while preserving the original vehicle profile.

The integrated X-Pipe configuration enhances exhaust gas distribution and pressure equalization across cylinders, a critical factor in extracting consistent power delivery and improving throttle response on carbureted or early fuel-injected V8 mills. Stainless construction resists corrosion and thermal degradation over years of seasonal use, eliminating the rust-through failures common to mild steel systems. The header-back design means installation flows directly from your existing headers, simplifying fitment and reducing installation variables. At 67.5 pounds, the complete kit accounts for the weight of mandrel-bent piping, support hardware, and both 2.5-inch exit tips.

This exhaust system targets A-Body restoration projects—Darts, Dusters, Valiants, and Barracudas—where owners seek authentic period performance without sacrificing modern manufacturing standards. Street-driven classics benefit from the balanced approach: enough flow improvement to unlock hidden engine potential without oversize piping that sounds overwrought or looks out of proportion on a vintage chassis. The Street Pro X-Pipe designation indicates tuning for street duty rather than race-only extreme backpressure curves.