Reasons for modifying the exhaust
The exhaust of the original car is grid-type, which limits the sound and horsepower of the car. The modified exhaust is straight-through, the sound changes, and the horsepower is improved according to the pipe type. At the same time, the exhaust of the original car is iron, easy to rust, broken, and the modified exhaust is made of stainless steel.
Modified drum type and sound
S drum: Mainly improve the starting horsepower, the sound is low, bigger than the original car.
Street drum: comprehensively improve the horsepower of the car, the sound of the street drum can be made into a sports car sound or back pressure.
HKS type: directly improve the middle and high turning horsepower, the sound is like a racing car, just like the legendary sound heard before the car. Workmanship and import Japanese goods are comparable.
M drum: variable back pressure drum, known as the Austrian fox head, the tail drum body paint, very high-end. The sound is very quiet, only a little louder than the original car, and the sound is low. The overall improvement of horsepower is to modify the high-end goods in the exhaust.