Muffler Cutter Manufacturer: Unknown Fits exhaust pipes approximately 67mm in diameter; slight tightening possible. Photo 8 shows an image of a nearly identical product. For reference. I purchased this on this site, but it didn't fit, so I'm selling it. I don't know the details of the product. I tried to install it, but it didn't fit. Although it's listed as "no scratches," it's a "like new" and clean product.