Hello everyone. I have a 96 impala with about 37000 miles on it. The only thing i have done to the car is a set of flowmasters and a drop in k&n filter. Should i replace the plugs and wires since they are the original ones? Car seems to be runing fine but would like it to be a little quicker. If so which plugs and wire set should i use? Anything else i should do? I tried to use the search engine but since that crash we had nothing comes up. Thanks for your time.