Intake Manifold for Chevrolet Camaro (1998-2002) Cathedral Port Black w/Fuel Rail EFIHigh Flow Single Plane Intake Manifold for 1998 2002 Chevrolet Camaro (LS1 F Body) Designed for high RPM performance and EFI conversions: This single plane aluminum intake manifold replaces the factory composite manifold to optimize airflow characteristics between 2500 and 7000 RPM for LS based applications. The Stock Camaro LS1 Airflow Limitation The OEM composite LS1 intake manifold is engineered for low end torque, but becomes a severe restriction