Black on Black is cool as well......... Why not use a mugen supercharger? Actually why not Mugen everything? :P Not the Mugen exterior parts though..... make it a sleeper and then when a D******** in a Sports/Super or a certain german brand from Munich cuts you off. RUIN HIS OVERSIZED EGO
Even though I'm quite fortunate, I don't grow money on trees lol and also, even if it'll be me that will drive it for most of the time, my dad will also drive it a bit so installing a bolt on supercharger kit or even a turbocharger will make him have his heart go through the roof.
For ruining egos though, there's my friend's Jazz that will do the job just fine.