lol @ commodore.

To begin with - who's "low budget" is this ?

a rough guide on prices -
#1 – Lightweight flywheel = $400-700
#2 – Heavy-duty clutch = $300ish
#3 – Lower final drive = $900ish
#4 – Modified stock airbox (Aka Hondata) = $400+ ?
#5 – Header + cat + JDM DC5R or Mugen cat back = $1000 ++
#6 – Hondata K100 = $600ish + ?!?

Normal low budget mods (free DIY or cheap) usually are Cold air intake , Hi-flow airfilter replacement , advance timing a few degrees , cheap header + hi flow cat + cat back piping , weight reduction....start with these and then go from there .