Buy quality products from the knowledgeable turbo specialists with 15+ years in the business - Turbo BitsTurbo Bits Dual Port BOV Type - BCan be used for a replacement for a failed factory recirc-valve unit (full recirculating , dual port ( half recirculating / have venting ) or full vent BOV the choice is yours! just use the included hardware and swap components around where appropriate. Nissan Skyline R32 GT-R RB26DETT 1988-1994 (Requires 2 kits)Nissan Skyline R33 GT-R RB26DETT 1993-1998 (Requires 2 kits)Nissan Skyline R34 GT-R RB26DETT 1999-2002 (Requires 2 kits)Nissan Skyline R33 GTS-T RB25DET 1993-1998Nissan Skyline R34 GTS-T RB25DET 1999-2002Nissan Stagea Turbo 1996-2001 (Requires 2 kits for RB26DETT)Nissan Stagea Turbo 2001-2007Includes:-Dual port BOV-Gasket-Blanking plug-Allen key for flange adjustmentsCan be also converted to Universal 30mm Hose end BOV with included hardware ( please see last image )