Magnaflow headers with cats. Easiest way, they are like oem with better flow. The price is steep but you should not have any problems at all with emissions and you'll be completely legal. However superchargers don't get along with them, they cause the cats to overheat or something. (dont really remeber the exact problem)
Last edited by serdar255; 02-13-2013 at 07:37 PM.