I want to do the tune up myself on my wife's 03' Galant and I'm not sure where to find the spark plugs and wires. I normally pay to have it done but would like to save some money this time by doing it myself.

I'm not sure what set up that car has or how many cylinders so there are a few options i'll give you to choose from. 1. If you have a four cylinder engine then your plugs and wires will probably be under the plastic cover thats bolted right on top of your engine, your oil cap will probably be coming up through it. Take that cover of and you will find two boxes with wires running from them. The boxes are your ignition coils and they sit right on top of your plugs, the wires from them are your spark plug wires and they run to your other plugs. Pull wires and coils off to access your plugs. This is the very easiest set up to change so consider yourself lucky if you have this. If not the right setup, read on. 2. If you have 1 or 2 coils supporting more than 4 cylinders you will have plug wires running to your coil packs. The wires will be easy to spot. They will be running from the top of your engine to a box and be plugged into that box. If you have six cylinder you will have six wires, eight cylinders eight wires. At the end of those wires on the top of your engine block you will find your spark plugs. 3. If you have an ignition coil for each cylinder then you will not have wires at all because the coils are attached directly to the plugs. I don't believe i have seen a car with this set up but if this happens to be your set up let me know & I can help you out. I hope that this has helped you out. Good luck and I hope it works out for you.