I have about 45K miles and was going to change out my spark plugs (was changed at 18K) soon... The coils seem to be working fine but should i also which them out with the plugs? Or just add in the new plugs no problem?

 

If you don't have a problem, just do the plugs.

However wires take a big punishment due to heat.

 

cool, i may pick up a new set of wires, was thinking about it anyways...