does changing the plugs and wires help your car or does it hurt it? what are good plugs and wires?

 

from 4th gen on, there are no wires. we have "coil on plug" - every spark plug has its own coil, so there is no need for the wires. as for the plugs, get the NGK ones, that originally came with your car (double platinum, baby!). www.courtesyparts.com is one source.