You can buy these from Amazon. Here are the links: - Anodizing/Ransoto Slip-on Exhaust for Yamaha R3: https://amzn.to/39FGZxd - Same exhaust for Kawasaki Ninja: https://amzn.to/2XV8nER - Stock exhaust gasket: https://www.partzilla.com/product/yamaha/54D-E4714-00-00 *As an Amazon Associate I earn from qualifying purchases. Recently installed the Anodizing/Ransoto slip-on exhaust on my 2015 Yamaha R3 (YZF-R3) that I purchased from Amazon for about $70 (or $40 with the credits I had :)). It's pretty cheap and affordable. This video shows what comes inside the package, how I installed it on to my motorcycle, a soundcheck of stock exhaust, with and without baffle/DB Killer and of course, me riding around town. I like it! It looks cool, too! Let me know in the comments what you think.