3in Complete Exhaust Kit 64-67 GM A-Body

The Flowmaster 3-inch Complete Exhaust Kit for 1964–1967 GM A-Body vehicles is a header-back, dual rear exit system engineered to deliver improved flow and classic hot rod aesthetics. This aluminized steel exhaust kit combines performance gains with straightforward bolt-on installation, making it the go-to choice for A-Body enthusiasts seeking both function and visual impact without extensive fabrication.

The 3-inch diameter piping maximizes exhaust scavenging while remaining compatible with original and modified engine platforms common in first-generation A-Body restorations. The aluminized steel construction provides corrosion resistance through thermal cycling and seasonal storage, critical for vehicles exposed to moisture and temperature swings. Dual rear exit outlets deliver symmetrical exit flow and a purposeful visual stance at the rear of the vehicle. As a complete header-back assembly, this kit eliminates the need for separate component sourcing and custom welding, reducing installation complexity for both professional builders and owner-mechanics.

This exhaust system is purpose-built for owners restoring, modifying, or maintaining 1964–1967 Chevelle, Malibu, and Tempest models. Whether upgrading from original restrictive systems or replacing aging exhaust on a performance project, the Flowmaster kit addresses the specific dimensional and mounting requirements of early A-Body platforms. It suits street-driven classics, weekend cruisers, and restorations where balanced performance and period-appropriate appearance matter equally.