Gy6 50 139QMB Low Noise High performance Exhaust from NCY

With most performance exhaust and want most want is the low tone of a motorcycle. This is good indication of performance level which is a tell tale sign of more air flow for better low ned torque and greater top end speed.

NCY has introduced a low noise street performance exhaust for the GY6 139QMB engines that adds the performance of a knock down low tone pipe.

When matched with the NCY performance cylinder kits its perfect match that was produced to work together.