Hey guys, im wanted to add some accesories to my '06 f-150. its a 4.6 v6 2-wheel drive. the things that im wanted to add are air-intake, headers, dual exhaust and side step bars. i was seeing what products you guys prefer and recommend. the air-intake i was thinking of a k&n air filter, and a flowmaster 40-series exhaust. what about the headers? also what about programmers? is it worth it to purchase it versus the output it gives you? thanks for your help
Randy