Audi TT RS by O.CT

Austrian tuner Oberscheider Tuning (O.CT) has a performance package for the Audi TT RS that can squeeze even more power from its 2.5 liter, 5-cylinder TFSI engine. The conversion kit for the power upgrade includes new hardware components (such as the charge air cooler kit) along with an ECU remap that dials output up to 420 PS (309 kW / 414 bhp) and 570 Nm (420 lb-ft) of torque from the