HKS GT600 Sports Package. This kit is designed to achieve 600bhp with bolt on modifications.

This kit comes with the following parts -

Extension pipes (Turbo Elbow) - These replace the restrictive OE Elbows with High flow sports Cats
Center Pipe (Y-Pipe) - This replaces the OE Catalytic convertors with a High flow sports Cat
Intercooler Piping - Polished Aluminium
EVC - Boost controller
Spark Plugs - M45HL Super Fire Racing
Super SQV + SQV Pipe - Blow off valves with Polished Aluminium
Upgraded Actuators
Premium Suction Kit
Upgraded Fuel pump
Upgraded Fuel Regulator
Superior Finisher (W/GT600 Emblem)

With the following parts installed you are then ready to achieve more horsepower if you desire.