1964-1977 Chevy Chevelle Small Block Manifold Headers Chevrolet Car Exhaust Manifolds & Headers For GMC K3500 1990

For GMC K3500 1990

For Chevy For GMC C10 Pickups Trucks 1960+

When paired with a high-performance cold air intake and a cat-back exhaust system

For Ford E-350 Econoline Club Wagon

does not fit XI models

1964-1977 Chevy Chevelle Small Block Manifold Headers Chevrolet Car Exhaust Manifolds & Headers For GMC K3500 1990Product Overview: 1. Exhaust headers are a key upgrade for boosting engine performance by improving airflow. Unlike restrictive factory exhaust manifolds, performance headers give each cylinder its own dedicated exhaust path, reducing back pressure and improving exhaust flow. 2. By minimizing exhaust interference between cylinders, headers help increase horsepower and torque. When paired with a high performance cold air intake and a cat back exhaust