KAWASAKI Ninja 650 (2021-2023) This is a full system consisting of a high-grade lightweight titanium muffler and stainless-steel headers, and finished with a beautifully handmade carbon-fibre endcap. It offers increased performance across the rev-range and a weight decrease over the stock system, which will aid handling, and is also EC/ECE type approved. It has a deeper, sportier sound that adds to desirability. With easy-to-follow installation instructions, the Racing Line is a simple plug-and-play system that needs no remapping.