Vortech Universal FMU Recalibration Kit (4:1, 6:1, 7:1, 8:1, 10:1, 12:1
and One Gasket Included)

The Vortech FMU Recalibration Kit allows for recalibration of your Fuel Management
Unit and is a necessity to keep accurate fuel pressure and fuel delivery when
changing your fuel injectors or for fine tuning your custom application. The
kit includes a new diaphram along with the recalibration disks and works on
all Vortech and Powerdyne standard FMU applications.