GReddy Blow Off Valves
GReddy Blow Off Valves are easily adjustable to prevent both premature boost leakage and compressor surge. Each 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 3 different sizes give the GReddy user the option to match vehicles with mild upgrades to heavily tuned engines. Also available in an easy to install kit form for many turbocharged vehicles.
GReddy Blow Off Valves increase boost response between shifts. There are many factors in matching a blow-off valve to an application, valve location, turbocharger size and pressure, we recommend the following:
| Part # | R-Fit Models | Price |
| GReddy Type R & RS Blow Off Valves (Individually) | ||
| 11501660 | BLOW-OFF VALVE TYPE-R STD | $248.90 |
| 11501661 | BLOW-OFF VALVE TYPE-R STIFF | $248.90 |
| 11501662 | BLOW-OFF VALVE TYPE-RS | $225.15 |
| GReddy Type RS Blow Off Valves Kits | ||
| 11599501 | ***NEW!***BOV KIT Hyundai Genesis Coupe TYPE-RS***NEW!*** | $344.40 |
| 11511106 | BOV KIT Lexus SC300 JZZ30 TYPE-RS | $266.00 |
| 11511128 | BOV KIT Toyota Supra Twin Turbo 93-97 JZA80 TYPE-RS | $285.00 |
| 11521012 | BOV KIT Nissan Skyline GTR BNR32/33 TYPE R | $361.00 |
| 11521113 | BOV KIT NissanSilvia S14/S15 TYPE-RS | $280.25 |
| 11521125 | BOV KIT Nisan Skyline ECR33/34 TYPE-RS | $261.25 |
| 11531107 | BOV KIT Mitsubishi Eclipse GST/GSX 1995-99 TYPE RS | $266.00 |
| 11531111 | BOV KIT EVO 2003-on CT9A TYPE RS (Return) | $275.50 |
| 11531113 | BOV KIT EVO CT9A TYPE RS (Open) | $280.25 |
| 11531114 | BOV KIT RALLY ART COLT | $266.00 |
| 11541101 | BOV KIT RX-7 Turbo 1987-92 FC3S TYPE-RS | $275.50 |
| 11541103 | BOV KIT RX-7 Twin Turbo 1993-96 FD3S TYPE-RS | $275.50 |
| 11561106 | BOV KIT Impreza GC8 TYPE-RS | $266.00 |
| 11561110 | BOV KIT Impreza WRX / STI 2002-on GDA/GDB TYPE-RS (Return) | $289.75 |
| 11599500 | BOV KIT Golf / Jetta 1998-05 TYPE-RS (Return) | $280.25 |
| GReddy Blow Off Valve Components | ||
| 11900450 | BOV FLANGE STEEL | $32.75 |
| 11900451 | BOV FLANGE ALUMINUM | $35.50 |
| 11900452 | BOV FLANGE W/60mm ALUMINUM PIPE | $63.00 |
| 11900460 | BOV FLANGE W/50mm STEEL PIPE | $60.00 |
| 11900461 | BOV FLANGE W/60mm STEEL PIPE | $63.00 |
| 11900470 | BOV OUTLET ADAPTER 19-21mm TYPE-R | $16.36 |
| 11900471 | BOV OUTLET ADAPTER 28-35mm TYPE-R | $16.95 |
| 11900490 | BOV OUTLET ADAPTER 40mm TYPE-R | $14.00 |
| 11900491 | BOV OUTLET ADAPTER 45mm TYPE-R | $14.00 |
| 11900501 | BOV SPRING TYPE R STD | $37.50 |
| 11900510 | BOV SPRING TYPE R STIFF | $37.50 |
| 11900511 | BOV ATTACHMENT 19mm TYPE-RS | $15.45 |
| 11900512 | BOV ATTACHMENT 29mm TYPE-RS | $15.45 |
| 11900513 | BOV ATTACHMENT 32mm TYPE-RS | $15.45 |
| 11900514 | BOV ATTACHMENT 34mm TYPE-RS | $15.45 |