

GReddy Type-R Blow Off Valve, Stiff
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Part #: 11501661
11501661 - GReddy Type-R Blow Off Valve with Stiff Spring
May also require p/n GREDDY BLOW OFF VALVE FLANGE - ALUMINUM - (11900451)
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
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 a third-party application-specific adapter


