A stock Audi TT RS is definitely a powerful vehicle with its turbocharged 5-cylinder engine good for 360 hp and 343 lb-ft of torque. Many tuning companies love to work on this car and one of those is HP performance. They already turned two TT RS models boosting them to 500 hp and 523 lb-ft of torque.
The version that they revealed now is a TT RS with 739 hp and 648 lb-ft of torque achieved with the help of a GTX35 turbocharger, 90mm Clubsport exhaust, and new intercooler.
Other notable features are new air intakes, tuned fuel pumps and injectors, and ceramic brakes.
This small but extremely powerful sports car is sold for $53,308 which is close to the price of a stock TT. If you don't want to spend $53k on tuning, you can opt for a $10,660 turbo kit that boosts the horsepower to 592.