2. Locate the stock pipe. The stock pipe is typically located on the right side of the four-wheeler, just below the seat.
3. Remove the end cap from the stock pipe. The end cap is usually held in place by a few screws.
4. Pull the baffle out of the stock pipe. The baffle is a metal tube with a perforated inner surface.
5. Inspect the baffle for damage. If the baffle is damaged, it will need to be replaced.
6. Reinstall the baffle and the end cap. Tighten the screws until they are snug.
