i think u need to start with the basic 1st..
Cold Air Intake
u need a bigger intake.. the intake must face forward.. like this..
Bigger exhaust manifold.. better power at high rpm.. less power at lower rpm..
Not too big.. mayb 2.75 inch.. and since u said it's for daily driving u'll need this..
Carbon fiber hood, bonet, bumper, etc..
it won't help the hp.. but it sure help ur 0-100km/h time
do this 1st.. later we talk again