FAQ Q:If there is no choice, how to choose the required size?A:Since the options are limited and cannot be displayed in all sizes, if there is no required size in the options, please select custom to place an order, and leave a meage to tell us the size information you needQ:Can you customize LOGOA:Yes, Please contact us,we support customizing any trademark. But the buyer needs to provide a trademark authorization letterQ: mufflers What model is suitable for ?A: mufflers are universal, you need to measure the diameter of the exhaust pipe to choose the sizeQ: Is there a quality guarantee?A: All purchased (EPLUS +) brand products have a 1-year warranty More color option Click on the photo to choose more color Product Size Entrance optional size51 54 57 60 63 67 70 73 77(MM)Optional tail size76 89 101 114(MM)Length: 170MMCan't show more sizes in options. If the size you need is not available in the options, please contact u Product Size