Blow-Off Valves

GReddy Blow Off Valves are easily adjustable to eliminate compressor surge and preventing premature boost leakage, while increasing boost response between shifts. Each valve is made of durable cast and billet aluminum frame and the valve to diaphragm ratio provides performance that cheap piston types cannot offer. The spring stiffness adjustment screw and the three different models give the GReddy user the option to match vehicles with mild upgrades to heavily tuned engines.  - Blow Off Valve FV2

*(Counterfeit Warning)

 *WARNING: Cancer & Reproductive Harm
www.P65warnings.ca.gov





Item Type Size Description PART #
Blow-off Valve Type FV II 40mm

Floating Valve Design with Detent Knob - NEW

11501666
Item: Blow-off Valve
Type: Type FV II
Size: 40mm
Notes:

GReddy BLOW OFF VALVE FV-II  has adapted Floating Valve structure which does not open up when the Surge Tank has negative pressure. For no strong initial load, both quick response under low boost and prevention of the relief under high pressure are together. This is a new generation blow off valve.  Made in Japan.



SOUND CLIP



Gunmetal/Blue, adjustable detent rotary knob, floating valve, revised funnel outlet 

New 360 degree adjustable top hat - to point the. vacuum fitting. in any direction.

Floating Valve design with opposing springs, alows for improved control, response and idle.

new top hat design allow for rotating of the vacuum nipple without disassmebly of the unit.

80-480hp range

BOV gasket, nuts & bolts

Compatiable with standard 2-bolt GReddy BOV flanges and Type-RZ outlet adapters.

Replacement Parts for Type-FV II (FV, RZ / RS / S) - (here)
 



To install this product, the GReddy blow off valve mounting flange is required.
In addition, please prepare other necessary parts such as piping and hoses.
Product Name Description Code
Weld-on Mounting Flange Aluminum 11900451
or an 3rd party application specific adapter

Part #: 11501666
Price:
340.00Buy Now
Blow-off Valve Type FV 40mm

Floating Valve Design 

11501665
Item: Blow-off Valve
Type: Type FV
Size: 40mm
Notes:

[DISCONTINUED] - superseded by Type-FV2 p/n 11501666

GReddy BLOW OFF VALVE FV has adapted Floating Valve structure which does not open up when the Surge Tank has negative pressure. For no strong initial load, both quick response under low boost and prevention of the relief under high pressure are together. This is a new generation blow off valve.

SOUND CLIP

Gunmetal/Blue, adjustable floating valve, revised funnel outlet (Blue)

Floating Valve design with opposing springs, alows for improved control, response and idle.

new top hat design allow for rotating of the vacuum nipple without disassembly of the unit.

80-480hp range

BOV gasket, nuts & bolts

Compatible with standard 2-bolt GReddy BOV flanges and Type-RZ outlet adapters.

Replacement Parts for Type-FV (RZ / RS / S) - (here)

 

􏰀o To install this product, the G􏰅eddy blow off valve mounting flange is required.
In addition, please prepare other necessary parts such as piping and hoses.
Product Name Description Code
Weld-on Mounting Flange Aluminum 11900451
or an 3rd party application specific adapter

 

 

Download the Instruction Manual

Part #: 11501665
Price: 255.00
IMAGES:
Blow-off Valve Type R 47mm 11501660
Item: Blow-off Valve
Type: Type R
Size: 47mm
Notes:

Machined/Cast, 47mm valve, adjustable, 50mm outlet

280-600hp range

BOV gasket, nuts & bolts

 

􏰀o To install this product, the G􏰅eddy blow off valve mounting flange is required.
In addition, please prepare other necessary parts such as piping and hoses.
Product Name Description Code
Weld-on Mounting Flange Aluminum 11900451
or an 3rd party application specific adapter

Part #: 11501660
Price:
340.00Buy Now
IMAGES:
Blow-off Valve Type R 47mm

w/ Stiff Spring

11501661
Item: Blow-off Valve
Type: Type R
Size: 47mm
Notes:

Machined/Cast, 47mm valve, adjustable, 50mm outlet

Stiff Spring Relief pressure : 117.6~137.2kpa (1.2~1.4kg/㎠)

over 375hp range

BOV gasket, nuts & bolts

 

􏰀o To install this product, the G􏰅eddy blow off valve mounting flange is required.
In addition, please prepare other necessary parts such as piping and hoses.
Product Name Description Code
Weld-on Mounting Flange Aluminum 11900451
or an 3rd party application specific adapter

Part #: 11501661
Price:
340.00Buy Now
IMAGES:
BOV Flange Aluminium

for Type R / RZ / RS / S

11900451
Item: BOV Flange
Type: Aluminium
Size:
Notes:

Universal GReddy Blow off Valve Flange, Gasket, Nuts & Bolts

Aluminum (weld-on)

Piping OD 52m & ID 42mm

compatiable with all GReddy Blow-off Valves: Type-R, Type-RZ, Type-RS, & Type-S

Part #: 11900451
Price:
45.00Buy Now
IMAGES:
BOV Spring Type R

Stiff

11900510
Item: BOV Spring
Type: Type R
Size:
Notes:
Part #: 11900510
Price:
60.00Buy Now
IMAGES:
BOV Spring Type R

Standard

11900501
Item: BOV Spring
Type: Type R
Size:
Notes:
Part #: 11900501
Price:
45.00Buy Now
IMAGES:
BOV Replacement Gasket Type FV2 / R

Type FV2, FV, RZ, RS, S, R, R-Stiff

11900456
Item: BOV Replacement Gasket
Type: Type FV2 / R
Size:
Notes:

Replacement gasket for all GReddy Blow-Off Valves
Type FV2, FV, RZ, Type RS, Type S, Type R and Type R Stiff Spring

Gasket seals between GReddy BOV and Blow off Valve Flange

Part #: 11900456
Price:
6.00Buy Now
IMAGES:
BOV Replacement Adjustment Screw Set Type FV

Type FV

11501665-SS
Item: BOV Replacement Adjustment Screw Set
Type: Type FV
Size:
Notes:

11501665-SS - Replacement Adjustment Set-screw Set

Stainless Steel 3mm Allen Set-screw, Lock nut and washer

*. Also fits, Type S, Type RS, Type RZ and Type FV

Part #: 11501665-SS
Price:
5.00Buy Now
IMAGES:
BOV Replacement Diaphragm Type FV2

Type FV

99900036
Item: BOV Replacement Diaphragm
Type: Type FV2
Size:
Notes:

Also fits, Type S, Type RS, Type RZ, Type FV & Type FV2

Part #: 99900036
Price:
80.00Buy Now
IMAGES:
BOV Replacement Set Screw Set Type R

Type R, Type R Stiff

11601665-SS
Item: BOV Replacement Set Screw Set
Type: Type R
Size:
Notes:

11501660-SS - Replacement Adjustment Set-screw Set

Steel 8mm Allen Set-screw, Flanged Lock nut and O-Ring

Part #: 11601665-SS
Price:
7.00Buy Now
IMAGES:
BOV Replacement Diaphragm Type R

Type R, Type R Stiff

99900050
Item: BOV Replacement Diaphragm
Type: Type R
Size:
Notes:
Part #: 99900050
Price:
90.00Buy Now
IMAGES:
BOV Outlet Type FV / FV2 19mm 11900440
Item: BOV Outlet
Type: Type FV / FV2
Size: 19mm
Notes:

Optional 19mm outlet adapter

for Type FV2, FV and RZ BOVs

Part #: 11900440
Price:
22.00Buy Now
IMAGES:
BOV Outlet Type FV / FV2 29mm 11900441
Item: BOV Outlet
Type: Type FV / FV2
Size: 29mm
Notes:

Optional 29mm outlet adapter

for Type FV2, FV & RZ BOVs

Part #: 11900441
Price:
22.00Buy Now
IMAGES:
BOV Outlet Type FV / FV2 32mm 11900442
Item: BOV Outlet
Type: Type FV / FV2
Size: 32mm
Notes:

Optional 32mm outlet adapter
for Type FV2, FV & RZ bovs

Also fits Type RS

Previously 11900513 (blue) for Type RS

Part #: 11900442
Price:
22.00Buy Now
IMAGES:
BOV Outlet Type FV / FV2 34mm 11900443
Item: BOV Outlet
Type: Type FV / FV2
Size: 34mm
Notes:

Optional 34mm outlet adapter

for Type FV2, FV & RZ BOVs

Part #: 11900443
Price:
22.00Buy Now
IMAGES:
BOV Outlet Type FV2 / FV Funnel 11900450
Item: BOV Outlet
Type: Type FV2 / FV
Size: Funnel
Notes:

FV2 - BOV Vent Horn (Funnel outlet)

Optional 8port funnel outlet adapter

for Type FV2, FV & RZ BOVs

Part #: 11900450
Price:
TBABuy Now
Toyota Supra T/T 1993-97

BOV Kit - Type FV2 - NEW

11511215
Item: Toyota
Type: Supra T/T
Size: 1993-97
Notes:

w/ BOV FV2 (Floating Valve)

(JZA80) 2JZ-GTE (JDM) - Vents to Atmosphere 

GREDDY BOV FV2 KIT BFV2-112 JZA80(カイホウ)

 


 



*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11511215
Price: 450.00
Toyota Chaser JZX100

BOV Kit - Type FV2 - NEW

11511216
Item: Toyota
Type: Chaser
Size: JZX100
Notes:

w/ BOV FV2 (Floating Valve)

(JZX100) 2JZ-GTE (JDM) Chaser, Mark2, 
 -Returns or Vents to Atmosphere

GREDDY BOV FV2 KIT BFV2-124 JZX100

 



*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11511216
Price: 500.00
Nissan GTR 2009-20

BOV Kit - Type FV2 (2x) - NEW

11521216
Item: Nissan
Type: GTR
Size: 2009-20
Notes:

(R35) VR38DETT

2x BOV Type FV2 (Floating Valve) w/ adapters (BFV2-233)

for stock piping

recirculates back into air intake



*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11521216
Price: 900.00
Nissan S14/S15

BOV Kit - Type FV2 - NEW

11521213
Item: Nissan
Type: S14/S15
Size:
Notes:

GREDDY BOV FV2 KIT BFV2-213 S14(カイホウ) 
 - Return or Vents to Atmosphere


JDM (S14 & S15) SR20DET

BOV FV2 (Floating Valve) w/ adapters

for stock piping

recirculates back into air intake

 

*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11521213
Price: 475.00
Nissan Skyline GT-R BNR32 / BCNR33 / BNR34

Blow Off Valve Adapter Kit - Type R

11521012
Item: Nissan
Type: Skyline GT-R
Size: BNR32 / BCNR33 / BNR34
Notes:

Make:  Nissan
Model: Skyline GT-R
Year: 1989-98

Chassis: BNR32 / BCNR33
Engine: RB26DETT
Type: Type R Blow Off Valve and Adatper kit for BNR32 & BCNR33

Product features

bolt-on blow-off valve kit for stock type piping & flanges

*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.

Part #: 11521012
Price: 480.00
IMAGES:
Nissan Skyline GT-R BNR32 / BCNR33 / BNR34

Blow Off Valve Adapter Kit - Type FV2 - NEW

11521215
Item: Nissan
Type: Skyline GT-R
Size: BNR32 / BCNR33 / BNR34
Notes:

Make: Nissan
Model: Skyline GT-R
Year: 1989-98

Chassis: BNR32 / BCNR33
Engine: RB26DETT
Type: Type FV2 Blow Off Valve and Adatper kit for BNR32, BCNR33 & BNR34 (BFV2-230)

* Compatible for both open air vent and recirculation style installation.



Product features

bolt-on blow-off valve kit for stock type piping & flanges



*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.

Part #: 11521215
Price: 515.00
Nissan Skyline GT-S HCR32

Blow Off Valve Adapter Kit - Type FV2 - NEW

11521212
Item: Nissan
Type: Skyline GT-S
Size: HCR32
Notes:

Make: Nissan
Model: Skyline GT-S
Year: 1989-93

Chassis: HCR32
Engine: RB20DET
Type: Type FV2 Blow Off Valve and Adatper kit for HCR32 (BFV2-209)
  - return or vent to atmosphere


Product features

bolt-on blow-off valve kit for stock type piping & flanges



*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.

Part #: 11521212
Price: 450.00
Nissan Skyline GT-S ECR33

Blow Off Valve Adapter Kit - Type FV2 - NEW

11521214
Item: Nissan
Type: Skyline GT-S
Size: ECR33
Notes:

Make: Nissan
Model: Skyline GT-S
Year: 1994-98

Chassis: ECR33
Engine: RB20DET
Type: Type FV2 Blow Off Valve and Adatper kit for ECR33 (BFV2-225)
- return or vent to atmosphere


Product features

bolt-on blow-off valve kit for stock type piping & flanges

 


*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.

Part #: 11521214
Price: 450.00
Mitsubishi Evolution X 2008-16

BOV Kit - Type FV2 - NEW

11531214
Item: Mitsubishi
Type: Evolution X
Size: 2008-16
Notes:

(CZ4A) 4B11

BOV FV2 (Floating Valve)

Blow off Valve Adater Kit for factory piping (BFV2-317)

 - Recirculates back into air intake

or plug for open to atmosphere.

 


 



*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11531214
Price: 500.00
Mitsubishi Evolution 8/9 2003-07

BOV Kit - Type FV2 - NEW

11531213
Item: Mitsubishi
Type: Evolution 8/9
Size: 2003-07
Notes:

GREDDY BOV FV KIT BFV-311 CT9A(リターン)

(CT9A) 4G63

with BOV FV2 (Floating Valve) (BFV2-311)
 - recirculating outlet included to connect to the air intake
(can also be routed open with the included outlet)

 


 



*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11531213
Price: 450.00
Mazda RX-7 1993-02

BOV Kit - Type FV2 - NEW

11541206
Item: Mazda
Type: RX-7
Size: 1993-02
Notes:

GREDDY BOV FV2 KIT BFV2-503 FD3S(カイホウ)

(FD3S) 13B-REW

BOV FV2 (Floating Valve) with adapter
 - Vents to atmoshere
 



*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11541206
Price: 450.00
Scion Toyota Subaru FR-S / 86 / BRZ 2012-20

BOV Kit  for (G)-Tuner Turbo Kit - Type FV2 - NEW

11511217
Item: Scion Toyota Subaru
Type: FR-S / 86 / BRZ
Size: 2012-20
Notes:

GREDDY BOV FV2 KIT BFV2-135 - (this kit will not include blue FV2 horn outlet)

for use with GReddy T518Z or T618Z Tuner Turbo Kit for re-circulation or open to atmosphere
( for use with GPP GTX-R Tuner Turbo for open to atmosphere only)

(replaces sucition pipe and compression pipe to throttle body)

(ZN6) FA20

with BOV FV2 (Floating Valve)
with 19mm adapter & 19mm recirc. tube
recirculates back into air intake
or open with optional FV2 horn (sold separately)

 

*For competition (race) use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11511217
Price: 650.00
Subaru WRX / STI GDB

BOV Kit - Type FV2 - NEW

11561211
Item: Subaru
Type: WRX / STI
Size: GDB
Notes:

GREDDY BOV FV KIT BFV2-610 GDB (カイホウ&リターン)

(GDB) EJ20 / EJ25

with BOV FV2 (Floating Valve)
with adapter & recirc. tube
reciruclates back into air intake
or open with included parts

 

*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11561211
Price: 470.00
Subaru STI GRB

BOV Kit - Type FV2 - NEW

11561213
Item: Subaru
Type: STI
Size: GRB
Notes:

GREDDY BOV FV2 KIT BFV2-614 GRB (カイホウ&リターン)

(GRB) EJ20 / EJ25 Hatchback -(GV) & (VA) EJ STI Sedan

with BOV FV2 (Floating Valve)
with adapter & recirc. tube
reciruclates back into air intake
or open with included parts

 

*For Off-road use ONLY. Check legality of aftermarket products with your local state, county, city authorities before purchasing.
**This product is illegal to be driven on public roads in the USA.

Part #: 11561213
Price: 500.00