got my 04 compg about 6 months or so ago, so far this is what ive done off the top of my head
radio + wire harness(6 disc broke)
headlights
headers
frotn o2 sensor
plugs+wires
lim gasket+coolant elbows
power steering pump
front wheel bearings
right cv axle
front rotors+ pads
belts
tensioner pully
trans filter and fluid change
3 oil changes
fuel filter
pcv valve
flushed coolant and changed to green global
tstat
sc oil
fixed hud(stupid spring)
battery
egr delete cus leak in hose
oil pan bolt
blower motor
blower resistor
cabin filter
intake
and soon to be ac condensor
and possible motor mounts
So ya dont feel bad i paid 8 grand for mine but now everything is almost new and its running great