4-2-1 exhaust crocodile refers to the discharge of the tube, there are four, each cylinder a trachea, and then two and two together for the two, and finally the two tubes into one. This kind of banana low-speed torque to enhance the relatively large (city speed will be fast), but the improvement of high speed is not obvious (if running high-speed may not achieve the effect, even when the speed is very fast or slow), more suitable for daily use And street car modification.

4-1 Exhausting banana means that the four pipes discharged directly enter a pipe to discharge the exhaust gas. This kind of exhaust banana back pressure resistance is small, after the conversion of exhaust emissions to speed up the low-speed torque to enhance the effect of 4-2-1 worse, but it takes into account the high-speed speed. Exhaust to be smooth, then 4 to 1 priority, through the path will be combined into a smooth, good resistance, so all the performance of the first paragraph of the exhaust pipe are 4-1.

Cannabis low-speed torque to enhance the relatively large, resulting back pressure, exhaust more smoothly, so as to enhance the car in the high-speed horsepower, reduce the engine carbon deposition, according to displacement to enhance horsepower.

4-2-1 exhaust crocodile refers to the discharge of the tube, there are four, each cylinder a trachea, and then two and two together for the two, and finally the two tubes into one. This kind of banana low-speed torque to enhance the relatively large (city speed will be fast), but the improvement of high speed is not obvious (if running high-speed may not achieve the effect, even when the speed is very fast or slow), more suitable for daily use And street car modification.

4-1 Exhausting banana means that the four pipes discharged directly enter a pipe to discharge the exhaust gas. This kind of exhaust banana back pressure resistance is small, after the conversion of exhaust emissions to speed up the low-speed torque to enhance the effect of 4-2-1 worse, but it takes into account the high-speed speed. Exhaust to be smooth, then 4 to 1 priority, through the path will be combined into a smooth, good resistance, so all the performance of the first paragraph of the exhaust pipe are 4-1.

Cannabis low-speed torque to enhance the relatively large, resulting back pressure, exhaust more smoothly, so as to enhance the car in the high-speed horsepower, reduce the engine carbon deposition, according to displacement to enhance horsepower.

4-2-1 exhaust crocodile refers to the discharge of the tube, there are four, each cylinder a trachea, and then two and two together for the two, and finally the two tubes into one. This kind of banana low-speed torque to enhance the relatively large (city speed will be fast), but the improvement of high speed is not obvious (if running high-speed may not achieve the effect, even when the speed is very fast or slow), more suitable for daily use And street car modification.

4-1 Exhausting banana means that the four pipes discharged directly enter a pipe to discharge the exhaust gas. This kind of exhaust banana back pressure resistance is small, after the conversion of exhaust emissions to speed up the low-speed torque to enhance the effect of 4-2-1 worse, but it takes into account the high-speed speed. Exhaust to be smooth, then 4 to 1 priority, through the path will be combined into a smooth, good resistance, so all the performance of the first paragraph of the exhaust pipe are 4-1.

Cannabis low-speed torque to enhance the relatively large, resulting back pressure, exhaust more smoothly, so as to enhance the car in the high-speed horsepower, reduce the engine carbon deposition, according to displacement to enhance horsepower.

4-2-1 exhaust crocodile refers to the discharge of the tube, there are four, each cylinder a trachea, and then two and two together for the two, and finally the two tubes into one. This kind of banana low-speed torque to enhance the relatively large (city speed will be fast), but the improvement of high speed is not obvious (if running high-speed may not achieve the effect, even when the speed is very fast or slow), more suitable for daily use And street car modification.

4-1 Exhausting banana means that the four pipes discharged directly enter a pipe to discharge the exhaust gas. This kind of exhaust banana back pressure resistance is small, after the conversion of exhaust emissions to speed up the low-speed torque to enhance the effect of 4-2-1 worse, but it takes into account the high-speed speed. Exhaust to be smooth, then 4 to 1 priority, through the path will be combined into a smooth, good resistance, so all the performance of the first paragraph of the exhaust pipe are 4-1.

Cannabis low-speed torque to enhance the relatively large, resulting back pressure, exhaust more smoothly, so as to enhance the car in the high-speed horsepower, reduce the engine carbon deposition, according to displacement to enhance horsepower.