This
kit
converts
the
GFB
Mach
2
Recirculating
Valve
to
a
true
vent-to-atmosphere
style
BOV.
Includes
a
trumpet
to
replace
the
recirc
outlet,
a
firmer
spring
that
is
suitable
for
venting
to
atmosphere
(keeps
the
piston
closed
at
idle),
and
a
30mm
hose
plug
to
block
off
the
recirc
hose.
Only
fits
GFB
T9100,
T9101,
T9102,
T9104,
T9105,
and
T9135
