Radium V2 FPD-XR Extended Range Fuel Pulse Dampener - 8AN ORB Engine Model_4AGE Bright-dipped R5 and anodized green

Bright-dipped R5 and anodized green for superior resistance to engine coolant

There is no way of determining what size different types of fuel lines are compatible (rubber

Cylinder Heads:

No permanent modifications to the vehicle are required making installation a simple bolt-on job

The 2 sizes are based on the intake manifold's inside diameter of each injector counterbore

Radium V2 FPD-XR Extended Range Fuel Pulse Dampener - 8AN ORB Engine Model_4AGE Bright-dipped R5 and anodized greenV2 FPD: Even after tightened, the newest 8AN ORB dampers (20 0776 and 20 0777), will swivel permiting the vacuum port to be clocked 360 degrees. The opening and closing of fuel injectors creates pressure pulses in the fuel rail which can lead to unstable fuel pressure. In order to achieve a safe and consistent rail pressure, a fuel pulse damper (FPD) is often necessary. The FPD's internal diaphragm will absorb oscillating pulses and stabilize fuel