The GFB T9525 Deceptor II Pro is an adjustable blow-off valve for 1.8T and 2.7T turbocharged engines from the VAG group. The valve releases boost pressure when the throttle closes, reducing turbo load and improving boost control during gear changes.
The valve's operation can be adjusted, allowing the user to choose whether it functions as a fully atmospheric blow-off valve or a partially recirculating solution. This enables fine-tuning of sound and operation to suit driving style and intended use.
The mechanical design ensures quick response, and installation is direct, replacing the original valve without permanent modifications to the vehicle.
Features
Adjustable discharge method (atmospheric / partial recirculation)
Reduces turbo load during shifts
Improves boost pressure control
Clear and adjustable blow-off sound
Mechanical vacuum control
Bolt-on installation
No software changes required
Product Information
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Adjustable blow-off valve
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Mechanical design
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Compatible with original mounting points
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Direct installation in place of OEM valve
Compatibility:
Audi A3, S3, RS3 8L, 8L1: 1.8T
Audi A3, S3, RS3 8L1: S3 1.8T
Audi A3, S3, RS3 8P1: 1.8T (110 kW 150 PS)
Audi A4, S4, RS4 8D2, 8D5, B5: 1.8T / 2.7T (incl. S4 & RS4)
Audi A4, S4, RS4 8E2, 8E5, 8H7, 8HE, B6, B7: 1.8T
Audi A4, S4, RS4 8EC, 8ED, 8H7, 8HE, B6, B7: 1.8T
Audi A6, S6, RS6 4B, C5: 1.8T & 2.7T
Audi TT, TTS, TTRS 8N3, 8N9: 1.8T
Ford Territory SX, SY: Territory SY 4.0L turbo 06-11
Mazda MX-5 NB: MX-5 Turbo BP-Z3 02-05
Seat Alhambra 7V8, 7V9: 1.8T
Seat Exeo 3R2, 3R5: 1.8T
Seat Leon 1M1, Type1M: 1.8T
Seat Ibiza 6K1, 6L, 6L1: 1.8T (incl. Cupra R)
Skoda Superb I 3U4: 1.8T
Skoda Octavia I 1U2, 1U5: 1.8T (incl. RS)
VW New Beetle 1C1, 9C1: (erste Generation) 1.8T
VW Bora 1J2, 1J6: 1.8T
VW Golf 4 1J1, 1J5: 1.8T (incl. GTI)
Vw Jetta A4 Typ 1J: 1.8T
VW Passat 3B2, 3B3, 3B5, 3B6, B5.5: 1.8T
VW Polo 9N_: GTI (Typ 9N3)
VW Sharan 7M6, 7M8, 7M9: 1.8T