Holley - REGULATOR/DAMPER, EXTENDED RANGE 40-100PSI 25 in Free Length -

25 in Free Length - 2 in OD - 3000 lb/in Spring Rate - Steel - Copper Powder Coat - Each

This emissions legal system is constructed from 3

5 in Length - 300 lb/in Spring Rate - Steel - Blue Powder Coat - Each

3/5 - FIA Approved - Single Layer - Fire Retardant Fabric - White - X-Large - Pair

880 in Valves - 335 cc Intake - 121 cc Chamber - 1

Holley - REGULATOR/DAMPER, EXTENDED RANGE 40-100PSI 25 in Free Length -Fuel 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.