Pedal Commander throttle response controller PC08 for VAG Group (Audi, Porsche, Volkswagen) - Available for Golf R, Jetta, Passat, Touareg, Cayenne, A4, S4, A6, S6, A8, S8, Q7, RS4, RS6, TT, etc. ELIMINATE RESPONSE DELAYS in your Porsche, Audi, VW acceleration EASY plug-&-play installation that DOES NOT void your warranty 4 adjustable modes: Eco, City, Sport, Sport+ Improve FUEL ECONOMY up to 20% in your Audi, VW, Porsche with ECO mode Phaeton (2004-2006) Golf (1999-2005) Golf R (2015 and newer) Fox (2003 and newer) A1 (2010 and newer) A3 (2000-2003) A4 (2003-2008) A6 (2000-2006) A8 (2002-2010) S4 (2003-2008) S6 (2002-2003) S8 (2002-2009) Q7 (2010-2015) RS4 (2007-2008) RS6 (2003-2004) TT (2000-2006) Cayenne (2003 and newer) Allows you to maximize fuel economy up to 20% over the stock ratings. It also doubles as a valet mode to keep a driver (or even your newly licensed teenager) from being able to accelerate above a certain rate. Many of our customers say that city mode allows the vehicle to accelerate as it should have from the factory. It gives you the response of an &#034;old school&#034; throttle cable, with a 1:1 pedal-to-throttle acceleration ratio. Gives any vehicle the response and acceleration of a race car, allowing you to get up and go when you need to without waiting for the ECU to catch up to your foot. Perfect for spirited driving or on a race track. Please use with caution!