Ask for or put money towards FUNCTIONAL items, not "lookie-loos" such as "carbon fiber this or that"... go for the looks after you upgrade the funcational items.
if you still have the 6 button OBC, convert it over to the 13 button OBC
if you still have the stock shifter, convert it to the Z3 short throw shifter
if you still have stock springs, go with a good set of lowering springs
if you still have factory or old shocks/struts, then go with a set of Bilsteins or better
if you have not completed the vacuum hose/cooling hose deletes under the intake - read up on a thread here and do that
if you are running a paper air filter, convert over to a better one like a K&N
upgrade the stereo system to something better (if you have not already)
get a Mark D chip - lots of folks have them and there's great reviews about the performance increase from his chips
upgrade your bushings if you still have all old stock rubber bushings
go with an electric fan setup over the stock mechanical fan setup
get rid of the spark plug wires & factory coils and go with a COP kit (they're advertised here in the classifieds - that in itself is a great uprade and nice Christmas gift!)
I could keep going w/ ideas, but I'll let others chime in ... LOL!
