The 51mm/60mm Universal Motorcycle Exhaust Slip-On is a high-quality silencer designed for Ninja 400, MT-07, and Duke 390 motorcycles. Made in China, this single exit silencer is a perfect addition for those looking to upgrade their exhaust system. Easy to install, this slip-on silencer offers a sleek design and improved performance on the road. Perfect for motorcycle enthusiasts looking for a reliable and efficient exhaust option.