Whoa, THAT sounds like some fun.
If some is good, more is better....
“6.4L Hemi V8 making a healthy and very symmetrical 470 HP and 470 kb-ft of twisties”
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2015 Mustang will be 500hp ,, and not just the “special” models ..
The have had that 6.4L engine option since the 2011 model year, actually. It replaced the 6.1L engine.