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 Blow Off Adaptor VAG for Volkswagen/ for Audi 710D FSiT TFSi(blow off valve)(BOV)/blow dump BRAND NEW F***E SPACER!! for AUDI/VW 2.0T FSI AND TSI ENGINES If you are not sure if this will work for your vehicle please contact us we will help you, also if you need any help with installation will walk you through the process.    Sandwich  type adapter that fits between the existing electrical solenoid and the  turbo charger housing. On the 2.0 FSiT TFSi turbo, built into the  turbocharger housing, is a  bypass facility. This allows charge air to be  recirculated around the turbo charger from the boost side back to the  intake side. This re-circulation path is opened and closed by means of an  electrical connection from the engine management to a solenoid that is  mounted on the turbocharger housing. As you accelerate , the turbo  charger vanes are spinning and boost pressure is increased, literally  blowing into the engine cylinders. While you change to a higher gear the throttle  valve to the engine closes. The problem here is that during this  process the turbo is still spinning and the boost pressure that it is  producing has no where to go. (This is a bit like putting you hand over a  hair dryer so the air cannot get out) What happens at this point is the  turbo starts to stall, the spinning vanes slow down and the boost pressure drops. When  the throttle valve opens again the  turbo has lost its momentum, boost pressure and there is a pause or a  "Lag" before the engine is producing the required power once again. To  combat this loss of power and stress on the turbo, a re-circulation or  diverter valve is used. When the throttle valve closes, the  engine management opens the re-circulation route around the turbo. This  gives the charge air an alternative route and allows the turbocharger to  keep spinning so that when you accelerate again there is no "lag" or  waiting period. This system works well and is adopted by nearly all  vehicle manufacturers on turbo charged petrol engine applications. The  only downside to this system is that a turbo chargers produce heat.  By recirculating the hot air back into the intake  side of a turbo the temperatures increase. This is where the Blow Off or  Dump valve plays its part. By expelling the charge air to atmosphere  rather than recirculating it, you do not increase the intake air  temperature but you do allow the turbo to keep spinning. The side effect  which is unacceptable to most vehicle manufacturers is the noise of the  valve expelling the air. By fitting the adapter between the existing  solenoid and the turbo housing (this involves removing only 3 bolts) the  air is re-directed to atmosphere rather than recirculated.   Please note: For the twin charged 1.4 engine (Turbo and Supercharger) please see FMDV14TSi Fits: VW and Audi 2.0L FSI and TSI engines with for Bosch ME9 engine management systems.   NOT ALL VEHICLE ARE LISTED ON THIS LIST JUST A FEW.   for VW Golf MK5 2.0 FSI Turbo - 2005 - 2008 for  VW Golf MK6 2.0 TSI Turbo - 2008 - Present for  VW Bora / Jetta 2.0 FSI Turbo - 2005 - 2010 for  Audi A3 8P 2.0 FSI Turbo - 2003 - Present for  Audi A4 B7 2.0 FSI Turbo - 2005 - 2008 for  Audi A4 B8 2.0 TSI Turbo - 2008 - Present for  Audi TT 8J 2.0 FSI Turbo - 2006 - Present for  Seat Leon MK2 2.0 FSI Turbo - 2005 - Present for  Seat Leon Cupra 2.0 FSI Turbo - 2006 - Present for  Seat Altea 2.0 FSI Turbo - 2004 - Present for  Seat Toledo 2.0 FSI Turbo - 2004 - 2009 for  Skoda Octavia 2.0 FSI Turbo VRS MK2 1Z - 2004 - Present for  VW Passat 2.0 FSI Turbo B6 B7 - 2005 - Present  for  Audi A6 C6  - 2004 - 2011 for  VW Tiguan 5N - 2007 - 2008 for  VW CC TSI 2009 - Present