Decent use set of Kerker slip-on mufflers off of a '85 Ninja 900 (ZX900A2, GPZ900R), these will fit all of the ZX900A series bikes. The left one has a hole rubbed in it from rubbing the swingarm. Get it welded and have a great set of pipes. These fit the stock collectors with no modification. Includes clamps and the stand stop hardware.Feel free to contact me if you are looking for a specific vintage Kawasaki part, I am a Kawasaki dealer as well as restorer.