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The high-revving 4.5-liter V8 redesigned pistons increase the Speciale’s compression ratio from 12.5:1 to 14.0:1. The efficiency increase it brings is the main reason the engine produces 596 hp, 34 more than the regular 458 Italia’s, at the same 9000 rpm.
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The shape has been optimized to improve the flame velocity
The pressure in the combustion chamber is increased (+10bar at wide open throttle)
