Following its stunning debut in 2007, the Five Axis Project IS F went back to the shop for another makeover, this time in the engine compartment. With 416 hp on tap right out of the box, the standard IS F is no slouch. But the Project IS F concept brief included exploring the performance potential of its direct-injected 5.0-liter V8, so it now sports 5.8 liters while receiving ported and flowed cylinder heads, a new exhaust system and changes to theelectronic controls. The upshot is enough power and torque to put an evil grin on even the most jaded enthusiast’s face.
Source: Lexus Press Release