hi mate dont mean to be rude but try searching it , it has been covered plenty of times. ur best bet would be by starting with - Intake ( CES , SIMOTA , TRD , INJEN ) - Exhaust( any type really just to help the engine breath - Aftermarket ECU ( power FC ) - Coilovers - Braces/sway bars eg : HD rear swaybar , front strut brace - Heavy duty clutch ( Exced ) - engine mount inserts - Extended push rod i could go on forever there is plently it just depends how deap ur pocket is and how serious u are about ur car. if you have any questions about the car just pm me and im keen to answer. cheers mate Jake.