9ff gives Porsche 911 GT2 670-hp, working on 910-hp

530 horsepower; 0 to 60 in 3.

6 seconds; top speed of 204 mph. All that sounds pretty satisfying to us. But if you’re 9ff and you see the Porsche 911 GT2 on the track, all you can think is how much more power you can extract from under the hood.

Now it’s not like 9ff improved the 0 to 60 time because their 9ff GT2 still takes 3.6 seconds to reach 60 mph like the standard Porsche 911 GT2. However, the tuner made extensive engine modifications extracting a total of...

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