67-69 GM F Body 2.5in Dual Exhaust System

The 67-69 GM F Body 2.5in Dual Exhaust System from MagnaFlow Performance Exhaust is engineered for serious enthusiasts who demand both aggressive sound and refined street performance from their classic muscle cars. Whether you're restoring a Camaro or Firebird to original spec or maximizing the potential of a modified V8, this cat-back system replaces restrictive factory equipment with a tuned dual configuration that restores lost horsepower and delivers the authentic exhaust note these legendary platforms deserve. Built for drivers who understand that exhaust flow directly impacts engine efficiency, throttle response, and overall drivability—not just aesthetics.

This stainless steel system features a 2.5-inch diameter dual-pipe design that balances scavenging efficiency with controlled backpressure, critical for naturally aspirated V8 performance in the 300–400 horsepower range. MagnaFlow's mandrel-bent tubing eliminates the kinks and dents of crush-bent alternatives, maintaining consistent internal diameter to reduce turbulence and exhaust reversion. The cat-back configuration means the catalytic converter is retained—essential for emissions compliance—while the dual rear exit design distributes exhaust gases evenly from each cylinder bank, improving thermal management and reducing underhood heat soak that can affect intake temperatures on hot days.

Original and street-modified 1967–1969 GM F-Body owners benefit most from this system, including X-Body applications through 1975 where the same suspension and drivetrain architecture applied. Installation requires basic mechanical competency and standard hand tools; the system bolts directly to existing exhaust manifolds, eliminating costly fabrication work. At 63.57 lbs, weight is negligible for handling, while the natural stainless finish resists corrosion and maintains appearance without ceramic coating maintenance. Verify underbody clearance on heavily modified suspensions before ordering.