1999-2000 Honda Civic Si 1.6L Exhaust Header Manifold Cadillac Direct replacement for factory Y-pipe

Direct replacement for factory Y-pipe turbo up pipe

Eliminates the flexible EGR extension pipe

2009-2010 Mazda 6

For 2009 BMW 128i

2010 Chevrolet Cobalt

1999-2000 Honda Civic Si 1.6L Exhaust Header Manifold Cadillac Direct replacement for factory Y-pipeProduct 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