Daytona adopts round double edges and corners, T304 resonant stainless steel, 3.0-inch inlet, 9.0-inch long and 4.5-inch outlet, classic primary color tail throat, blue-plated tail throat, black-plated tail throat, carbon fiber tail throat, etc. Classification by shape: inclined tail throat, flat tail throat, single-rolled tail throat, double-curled tail throat, flat-mouthed tail throat, etc ... Some riders think that our carbon fiber tail throat is expensive. As the saying goes, "every penny gets the goods". However, carbon fiber tail throat has many advantages, such as heat resistance and wear resistance. Because carbon fiber is "soft outside and rigid inside", its weight is lighter than aluminum, but its strength is higher than steel, and it has the characteristics of corrosion resistance and high modulus, so it is an important raw material for national defense, military industry and civil use.