We show the spare part 18400-MBB-003 as "MUFF.COMP.EXH.L. It is quite possible that you will come across this elsewhere under a different name. We recommend that you only look at the product number. Check the models to ensure that this item is suitable for your motorbike. Given the popularity of this product, it can be said that there is a lot of enthusiasm for it. Using the product photo you can check if this is the exact spare part you are looking for. See the actual stock via the hyperlink.