German firm SpeedArt have released their latest tuner job of the Porsche 997 Turbo. The SpeedArt BTR-II 650 EVO features a horsepower boost of 150 PS (110 kW / 148 hp), and torque increase of 150 Nm (111 lb-ft). This brings output to 650 PS (478 kW / 641 hp) and up to 650 Nm (479 650hp by SpeedART BTR II 650 EVO is a post from: Tuning-Fan.Biz
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650hp by SpeedART BTR II 650 EVO