1997-2000 Cadillac DeVille 4.6L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 Chevrolet 1 Set of Intake Bridge:

1 Set of Intake Bridge:

2x Cap Head Bolts M8 x 20MM

Material: 6061-T6 Aluminum & Stainless Steel Bolt

Turbo Y / Up Pipe:

Actual Displacement: 199cc

1997-2000 Cadillac DeVille 4.6L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 Chevrolet 1 Set of Intake Bridge:Product 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