Headers are often one of the most overlooked pieces of the exhaust system. Equipping a set of aftermarket Toyota Camry headers not only looks great but also improves horse power and torque. Usually after market parts designers take into account a lot of variables to improve flow to gain power and also help smooth out your vehicles power band. This requires much more than simply increasing your Toyota Camry header pipe diameter. The length of the runners and how and when they collect all come into play when these performance headers are designed.