Porsche specialized tuning company 9ff has taken its TR 1000 tuned 911 Turbo to the ATP automotive testing circuit in Papenburg, Germany and tested the car’s top speed, obtaining an impressive figure of 391.7 km/h (243.4 mph), as Option Auto reports.
The force responsible for this performance comes from the TR-1000’s 4 liter flat-six engine with two improved turbochargers, a modified intercooler, sport camshafts, titanium rods, revised cylinder head and driveshaft, a sport air fi… (read more)