The thing is basically like a factory-ordered tuner car, with Hipermax Max4 SP adjustable suspension, RAYS Volk G25 wheels, and a ton of HKS add-ons to the engine. There's a new turbo, a new intake, a new ECU, fuel management, and exhaust. That's where the 237.5 hp/liter figure comes from. As Autoblog Japan and Road…