GFB T9135 BOV Mach 2 TMS fits WRX STi, Nissan 180SX & Holden VL Commodore

Using GFB's TMS technology the Mach 2 can help return the engine to peak boost up to 30% faster than a factory diverter valve when shifting gears (more information below). Recirculation model for direct factory replacement for performance without the noise Atmosphere venting kits to convert the recirculating valve if you want noise with your performanceLike the Respons and Deceptor Pro II, the Mach 2 is available in a range of bolt-on kits for most popular turbo models. And when we say "bolt-on", that's exactly what we mean! No additional adaptors, parts or vehicle modifications are required - simply remove the factory bypass valve and replace it with the Mach 2 - it's that simple! The Mach 2 is configured as a 100% recirculating valve (i.e. bypass, plumb back) and add on kits are also available to convert to 100% atmosphere venting. Use the recirc model for direct factory replacement when you want the performance WITHOUT the noise! Add the conversion kit when you want some noise with your performance!Factory bypass valves have two main shortcomings - one is that they are typically designed to start opening above a certain pressure to protect the engine, and the other is they are not optimised for throttle response. The Mach 2 solves all of these issues. It can effectively hold unlimited boost (unlimited in that no turbo could ever produce enough pressure to damage it), and the TMS technology ensures maximum throttle response. Suitable Vehicle Applications:NISSAN 180SX S13 1.8 CA18DET 89-92 S13 148kw Petrol Engine RWD Coupe 04/89-06/92NISSAN 180SX S13 1.8 CA18DET 89-92 S13 147kw Petrol Engine RWD Coupe 04/91-03/94NISSAN 300ZX Z32 VG30DETT 89-97 Z32 168kw Petrol Engine RWD Coupe 12/89-03/97NISSAN 300ZX Z32 VG30DETT 89-97 Z32 208kw Petrol Engine RWD Coupe 12/89-12/97NISSAN 300ZX Z32 VG30DETT 89-97 Z32 197kw Petrol Engine RWD Coupe 05/90-12/97MAZDA 626 GD F2 turbo 87-91 GD 100kw Petrol Engine FWD Hatchback 10/87-12/91MAZDA 626 GT GC FET 86-87 GC 87kw Petrol Engine FWD Hatchback 01/86-10/87MAZDA 626 GT GC FET 86-87 GC 87kw Petrol Engine FWD Sedan 01/86-10/87MAZDA 626 GT GC FET 86-87 GC 87kw Petrol Engine FWD Coupe 01/86-10/87TOYOTA Celica GT-Four ST165 3S-GTE 86-89 ST165 142kw Petrol Engine AWD Coupe 10/86-12/89TOYOTA Celica GT-Four ST185 3S-GTE 89-93 ST185 150kw Petrol Engine AWD Coupe 03/90-12/92TOYOTA Celica GT-Four ST205 3S-GTE 94-99 ST205 178kw Petrol Engine AWD Coupe 02/94-10/95HOLDEN Commodore VL RB30ET 86-88 VL 150kw Petrol Engine RWD Wagon 01/86-08/88HOLDEN Commodore VL RB30ET 86-88 VL 150kw Petrol Engine RWD Sedan 01/86-08/88MITSUBISHI Cordia AA-AC 4G62 83-89 AA, AB 110kw Petrol Engine FWD Coupe 04/83-10/84MITSUBISHI Cordia AA-AC 4G62 83-89 AC 90kw Petrol Engine FWD Coupe 11/84-07/89SUBARU WRX MY97-98 GC8D 155kw Petrol Engine AWD Sedan 07/96-09/97SUBARU WRX MY97-98 GC8D 155kw Petrol Engine AWD Wagon 07/96-09/97MAZDA MX6 GD F2 turbo 87-91 GD 100kw Petrol Engine FWD Coupe 10/87-09/91SKODA Octavia Mk1 (1U) 1.8t 96-06 Type 1U 125kw Petrol Engine FWD Hatchback 01/96-12/99NISSAN Pulsar GTi-R N14 SR20DET 90-95 N14 162kw Petrol Engine AWD Hatchback 10/90-05/95NISSAN Silvia S13 1.8 CA18DET 88-94 S13 124kw Petrol Engine RWD Hatchback 01/88-12/94NISSAN Silvia S13 2.0 SR20DET 88-94 S13 150kw Petrol Engine RWD Coupe 01/88-12/94MITSUBISHI Starion JA-JD 4G63 82-88 JB 147kw Petrol Engine RWD Coupe 09/85-11/85MITSUBISHI Starion JA-JD 4G63 82-88 JA 147kw Petrol Engine RWD Coupe 05/82-08/84MITSUBISHI Starion JA-JD 4G63 82-88 JA, JB, JD 132kw Petrol Engine RWD Coupe 08/84-11/85MITSUBISHI Starion JA-JD 4G63 82-88 JA, JB, JD 125kw Petrol Engine RWD Coupe 06/82-08/84MITSUBISHI Starion JA-JD 4G63 82-88 JA, JB, JD 110kw Petrol Engine RWD Coupe 12/85-12/87MITSUBISHI Starion JA-JD 4G63 82-88 JD 147kw Petrol Engine RWD Coupe 12/85-08/87FORD AUSTRALIA TX5 AT F2 turbo 87-89 AT 100kw Petrol Engine FWD Hatchback 11/87-09/89SUBARU STi MY94-96 GC8C 202kw Petrol Engine AWD Sedan 03/94-09/96SUBARU STi MY97-98 GC8D 206kw Petrol Engine AWD Wagon 07/96-09/97