If you have a Porsche 997 Carrera or any NA vehicle for that matter, you are probably reading forums and googling what are the best mods to put on your car. The same couple of parts do the trick each time and this Porsche 997 Carrera S is no different. With a normally aspirated car you want to get more air in through the intake, while allowing the exhaust to breathe better without compromising torque. With an intake and exhaust, doing a ECU tune will help optimize the cars air/fuel mixtures as well as adjust the timing accordingly. Together, this package gives you the ultimate in performance upgrade.