Enrique

I have a 2003 Grand Prix GT, My MODS so far are WINDOW TINT, INSIDE AND OUT LED's LIGHTS, and major improvement was my COLD AIR INTAKE. I only have 90,000thousand miles on this car! I'm not looking to build her up I just want more performance out of her. Would 8.5mm wire set and some good spark plugs make a diff? I am wanting to do maintenance on it pretty quick due to milage! So far I have change my oil, thirty minutes prior to change my oil I pour about half a bottle of SEA FOAM and let my car run for a good thirty minutes, WHILE i WAS DOING MY COOLANT FLUSH SYSTEM. Now my next step is Tranny service, Spark Plugs, Wire Set and Fuel Filer! HELP with this notes please.