2001-2005 Pontiac Aztek 3.4L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 2024-3-10 Replaces the restrictive factory turbo

Replaces the restrictive factory turbo direct pipe for increased exhaust flow and efficiency

Outlet Diameter: 2

For Honda Accord EX

For 2005-2006 Chevrolet Silverado 1500 5

Inner Bore Size: 39mm

2001-2005 Pontiac Aztek 3.4L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 2024-3-10 Replaces the restrictive factory turboProduct 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