This is our company BOST Muffler. We have Complete specifications and many different models to match with different brands of motorbikes. Our muffler are made of aluminum + stainless steel. It has the characteristics of exquisite workmanship, durable and reliable performance. And the exhaust system of our muffler is lighter than stock and appearance. All of our products already met the national quality standard, so it is high quality. Sounds great! Low and deep baffle sound, loudly remove the baffle. And the price are reasonable too. If our muffler meet your requirements, pls feel free to contact us for order.