getting aftermarket wires wont **** with my engine right? or wrong a friend of mine says that make a hotter spark which can in time **** with the engine this true?

 

No, thats rediculous. But, if you aren't going to be putting down rediculous numbers you dont need rediculous wires like nology wires. Just go with NGK or Densos, they both got good reviews. You're not really going to see any gains from just plug wires, I don't know what you're expecting.
http://sparkplugs.com/results_app.asp