GT 165 Mods? Ideas please :)

So I have just bought a GT 165.............. but well I want it modded...........



The initial things I was done are:



New alloys..... I wanna see if I can get 18" comfortable, got my eye on the assassins.

I want the upholstery redone...leather (my dad is an upholsterer and can do this)

I want a new 225 bumper

I am thinking about adding a small amount of colour re wrapping too



Now..... performance:



I need ideas! I can't possible stick to the 165hp, so I need ideas. I want more power than a remap can offer so what else can I do :)



Also if you have the same car id love to see what you have done to it :)