Mechanical Problems & Technical Chat - EASY CHEAP UPGRADES !!! 95sihb

hi, could u tell me what are some 100$ and lower upgrades that should be done first to the engine bay and rest of car??

so far i have:
full exhaust racing system
injen ram air
3inch aluminium godspeed radiator
bosch dis-cap
bremo brakes
front upperneuspeed strut
duckbill spoiler
and so on BUT WHAT ARE SOME SMALL MAIN THINGS THAT WILL MAKE A DIFFERENCE IN SOME WAY ???? please let me know !

i can't think of anything for less than 100 worth buying...

Plug wires maybe, I did a set of Bosch Platinum, plugs, and wires. Cost me like 79 for wires 30 for plugs. Made a huge difference. Canadian dollars, stuffs a lot cheaper in the states from what I hear.