Product Details
Vehicle Fitment & Compatibility
24 applicationsView all 24 vehicle applications
Key Features
FLOWTECH's Afterburner Turbo Chamber Headers represent the first new major design change in exhaust technology in decades. This designs combines the race-proven 4 into 1 design with the torque managing capabilities of a Tri-Y header. The turbo chamber helps smooth out exhaust turbulence for increased performance and a broad power curve.
1973-1974 Chevy/GMC Pick-Up 1/2, 3/4, 1-Ton, 2WD, 1973-1974 Blazer/Jimmy/Suburban 2WD: 283-400, Tube Size 1.625", Collector Size 3"
- Horsepower and Torque increased over conventional header design
- Big 3” secondary collector for reduced back pressure
- Tuned-length primary tubes combine with Velocity Tube to smooth out exhaust pulses
- Patented Velocity Tube increases cylinder scavenging
- All hardware and premium gaskets included for a complete installation
About this product
1973-1974 Chevy/GMC Pick-Up 1/2, 3/4, 1-Ton, 2WD, 1973-1974 Blazer/Jimmy/Suburban 2WD: 283-400, Tube Size 1.625", Collector Size 3"



