This stainless steel exhaust middle pipe is exactly what your KTM needs for better performance and sound! It fits 2017-2018 KTM Duke 250, Duke 390, and RC390 models perfectly. Made from quality stainless steel with a silver finish that looks great and resists corrosion. The bore is approximately 51mm (about 2.01 inches), which helps improve exhaust flow for better engine performance. Weighing around 424g, it's lightweight but built to handle the heat and vibrations of motorcycle use. Installation is pretty straightforward if you're comfortable working on motorcycles - just make sure to check all connections and use new gaskets for a proper seal. This middle pipe connects your headers to the muffler, so if you're upgrading your exhaust system or replacing a damaged pipe, this is the part you need. Whether you're looking for better sound, improved performance, or just need to replace a worn-out pipe, this stainless steel middle pipe delivers solid quality that matches your KTM's performance character. Your bike will breathe better and sound meaner - what's not to love?