way to "MOD"
There IS some way for you to mod your car for better power when wanna overtake someone on the street, yet do not cost you more FC, might even save more. Here's how:
-remove spare tire
-remove rear boot mat (all cars should have them right?)
-remove car jack
-remove tools
-remove plastic panels covering rear light's wiring (dunno about satria, but my mom's '00 wira got them, hey.. they weight something too)
-remove all audio system related stuff
-remove rear seat
-remove passenger seat
-remove passenger seat's headrest
-remove bootmat
-remove carpeting
-remove all sound proofing layering you might have under the car pet
-remove aircond system (including everything)
-remove glovebox
-remove door panel
-remove any cushion or steering wrap
-remove anything on the dashboard
-remove dashboard if posible, leave the meters alone
-remove rubber on pedals, as long can step on then its okay (use penknife scrap them off)
-remove power steering if you have one
-remove air filter
-remove muffler
-remove bumper
-remove front grill.
i guess thats about all the free mods you can do, its totally free if you do it yourself. that should be able to improve your power to weight ratio by maybe 20-25% (that mean its 20% more power!!).