1999-2003 Chevy Silverado 2500 Header Manifold Exhaust Cadillac Car Exhaust Manifolds & Headers The models this kit fits

The models this kit fits are called 550

For Audi A3 - BXE / BKC 105 & BXF BRU 90

Ring Set: 2C6-11603-00-00

For 2011-2015 Chevrolet Silverado 2500HD 6

reduce fuel consumption

1999-2003 Chevy Silverado 2500 Header Manifold Exhaust Cadillac Car Exhaust Manifolds & Headers The models this kit fitsProduct 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