70-81 Firebird/Trans Am

The Hedman 70-81 Firebird/Trans Am headers deliver a direct path for exhaust scavenging on Pontiac V8 engines in GM F-Body muscle cars. These 1.75-inch primary tube street headers feature a 3-inch collector design engineered to balance low-end torque with mid-range breathing on vehicles that demand both daily drivability and spirited performance. Built from steel with durable black paint, this pair includes all necessary gaskets and hardware for a complete bolt-on installation.

The 1.75-inch primary diameter is sized for naturally aspirated V8 applications where throttle response and low-to-mid-range power matter more than peak horsepower. The 3-inch collector consolidates exhaust pulses efficiently without creating backpressure that chokes off power in everyday driving. Steel construction with black paint provides straightforward durability in engine-bay conditions, while the gasket and hardware package eliminates secondary shopping and ensures proper sealing from day one. These headers bolt directly to the factory mounting locations on 1970-1981 Pontiac F-Body platforms—Firebird and Trans Am models with original or stock-displacement V8 engines.

This is the upgrade for owners restoring or refreshing classic Firebirds and Trans Ams who want measurable exhaust flow improvement without fabrication or fitment guesswork. Street-duty headers balance scavenging gains against heat management and ground clearance concerns on vintage platforms. Hedman's fitment on these specific model years and body styles eliminates the trial-and-error common with universal headers. The black paint finish blends with most engine-bay aesthetics and resists routine under-hood temperatures.