Moto Short Performance Exhaust Muffler Pipe Black Steel For GY6 150cc 4 Stroke Scooter GY6 150cc Performance Shorty Exhaust System GY6 150cc Based Scooter Engines Fits Most of Scooters and ATV Package includes all the parts showing in images Notes: All head pipes and brackets are chrome plated carbon steel It will not just ''bolt on'' to every scooter model. You may need to bend the brackets or make other modification to make it fit Comes with brackets welded to the pipe for the GY6 application. (some modification may be required) This muffler is designed to be mounted horizontally as seen in the image, if your muffler mounts differently this muffler may not serve as a suitable replacement On some models once the Head Pipe is mounted it may need to be heated and slightly bent out for clearance and alignmen A great up-grade 7 inch length exhaust system when installing a big bore kit or a great replacement exhaust for a broken stock exhaust system You may also have to Grind a Half Moon Shape in one of the Mounting Brackets to Clear the Engine Dip Stick