texasedition

I want to add some headers, and dual exhaust to my 4.6. I want to keep the cats. What would be the best set up? Also I wanna buy a Cold Air Intake. Who is running what? I just wanna know before I buy. I will go with K&N or Brute Force. Also spark plugs, I want to get change out my plugs now, what would the 4.6 get the best response out of? NO BOSCH. I install them all day and they blow.