1998-2001 Oldsmobile Intrigue 3.5L/3.8L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 2111K Notes: Deleting the air pump

Notes: Deleting the air pump may require ECU reprogramming

For VW Bora - AXR 100

For BMW 5 (E39) 530d - engine codes M57 D30 - 1998

Our Oxygen Sensor Replacement Kit addresses these issues

1998-2001 Oldsmobile Intrigue 3.5L/3.8L Exhaust Manifold 4 Cyl W/ Heat Shield 674-509 2111K Notes: Deleting the air pumpProduct 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