They work in tandem with your AEM fuel pressure regulator to smooth out the pressure pulsations caused by the injectors opening and closing as well as the fuel pump operation under load.
Fuel pulse damper for EFI fuel systems. Screws into a female 8AN ORB port (such as on a fuel rail). Damper body swivels after installation. Compatible with all fuels.
Fuel pulse damper for EFI fuel systems. Screws into a female 8AN ORB port (such as on a fuel rail). Damper body swivels after installation. Compatible with all fuels.