GFB DV+ (part T9356) - Manual (Page 3)

Piston type OEM diverter (typically Dodge/Fiat):
Remove the yellow o-ring from the factory diverter. This should be done carefully to avoid damage, as the
o-ring will be re-used on the DV+. Now pull the piston out of the diverter body, then remove the spring.
CAREFULLY pry the piston sleeve out of the diverter body, using the inside lip near the blue seal or the lip
where the o-ring was. Lever it gently and work your way around so it pops out evenly. Note that this piece
is fragile and can break easily - if this happens, you’ll still be able to carry on with the installation, but you
won’t be able to re-fit the factory piston again.
Main piston spring:
Please see notes on
the next page
GFB-supplied
plunger spring
Diaphragm type OEM diverter (typically BMW):
Remove the yellow o-ring from the factory diverter. This should be done carefully to avoid damage, as the
o-ring will be re-used on the DV+. CAREFULLY pry the diaphragm shield of the diverter body, using the lip
where the o-ring was. Remove the valve/diaphragm and spring.
Assemble the GFB parts onto the factory solenoid body as shown in the exploded view below, making
sure to use the GFB-supplied plunger spring, and the yellow o-ring removed from the factory valve.
Apply some engine oil to the piston during this process.