1993 Prelude Si 4ws upgrades

What type of upgrades are good for a 93 prelude Si 4ws?
What type of Spark plugs
spark plugs wires
msd ignition (any good?)
injen air intake (any good?)
and what else info.

What are you trying to achieve?

I don't know if I'd waste my time spending 80 dollars on plug wires if you should replace them every 15 - 20k anyway..

I haven't heard anything bad about NGK plugs.

Suspension is always good.