In the World of Tuning it is well known that the exhaust design plays crucial role to the overall performance of an engine. Torque and horsepower could be enhanced by developing certain lots of different techniques and methods. For instance focus on the latest design and fabrication of the exhaust pipes for the Moto2 Class of MotoGP where the sealed Honda engines are not allowed to be tuned up. Therefore, lots of teams are cooperating with several exhaust companies that managed to extrude more power out of the Honda engine or to alter the existing power band. On the other hand since the four-stroke watercrafts appeared in the market we have not seen any aftermarket company developing any type of header, with boost cans, or powervalves or any sort of aftermarket exhaust systems with progressive diameter on its tubes, etc, apart from a free flow water-box. Why all those companies have developed so many engine parts and they had left aside the most crucial one? The pictured exhaust system is of Honda RC212V 2010 photographed by Vasilis Moraitis.











