Holley Direct Mount Fuel Pulse Damper - 40-70 psi - 6 AN Male O-Ring - Black 61691 12 AN Male to 12

12 AN Male to 12 AN Male O-Ring

Precision Seal Plates are CNC-machined 7075-T4 aluminum anodized to resist corrosion

* For headers

Stock Heads

Holley Direct Mount Fuel Pulse Damper - 40-70 psi - 6 AN Male O-Ring - Black 61691 12 AN Male to 12Fuel pulse dampers act in tandem with the fuel pressure regulator to further control the fuel pressure in an EFI system. They act to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operating. These pulsations happen so quickly that in many cases they can't be identified with an analog gauge but can cause issues with fuel delivery to the engine. Product Description: Fuel Pulse Damper Direct Mount