9ff Logo (2001-Present)
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9ff is a German car tuning company, based in Dortmund, founded by Jan Fatthauer in 2001, specializing in converting stock Porsches into street legal racing machines, either as fully tuned cars, or selling individual parts or kits.
9ff logo (blue)
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The 9ff GT9 was replaced by the GT9-R, offering up to 1,120 bhp (840 kW; 1,140 PS). It was designed to take the speed record for a street legal car, with a claimed speed of 420 km/h (260 mph).