I'm soon to buy an '03 Lancer with tons of mods on it already. My problem is, I don't know what else I can do to it.

Here is a list of mods already on it:

Roadrace headers
Magnaflow exhaust
Aftermarket head and tail lights
Custom interior
Custom system and trunk
17 inch Konig rims
Lowering springs
Roadrace ECU
Injen Cold Air Intake

What else can I do???? Help me, PLEASE!!!!