Four-door Mopar land rocket receives additional boosters
The horsepower output offered by the Dodge Challenger SRT Hellcat and its four-door Charger sibling is enough for most people, but Hennessey Performance is not most people. The ridiculously dynamic duo already pumps out 707 hp courtesy of their 6.2-liter supercharged V8 engines, but in the performance tuning world there is still room for improvement, never mind the fact that there aren't many places to exercise all those horses.
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