Description: Audi TT 225 hp 1.8T performance increase to approx. 300 hp / 395 NmThe kit contains: - KKK upgrade turbocharger K04/K06 (56>45mm)- Software optimization kit 3- 4x 470cc injectors- Reinforced intake hose- Reinforced diverter valve- BMC high-performance sport air filter for 1.8TControl unit must be sent to us, or make an appointment on site. The following components are also necessary to achieve the performance with kit 3: Exhaust system stainless steel 70mm http://www.turbo-parts.de/Abgastechnik/Abgasanlagen/Audi/TT-225PS-8N/Auspuffanlage-fuer-Audi-TT-225PS-8N-Quattro-1-8T-o-70mm-Edelstahl-TUeV::1481.html1.8T S3 76mm downpipe stainless steel with 200 cell racing catalytic converter http://www.turbo-parts.de/1-8T-Tuning/Hosenrohre/Downpipe-fuer-Audi-S3-8L-1-8T-209PS-TT-225PS-o-76mm-Edelstahl-mit-200-Zellen-Rennkat::1756.html1.8T S3 large intercooler kit http://www.turbo-parts.de/Ladeluftkuehlerkit/Front-Ladeluftkuehler-Kit-fuer-Audi-S3-8L-550x230x65mm::1628.html