Trail Tech (SR-8313 100W Stator Kit Fits KTM 4stk 450/525/530 EXC-Racing/EXC-R/EXC Champions Edition 2007-2011 Increase power output significantly, perfect for adding lights and turning night into day Electrical System kits contain regulator/rectifiers and model-specific connectors Trail Tech stators are custom made by Trail Tech, not purchased from bike manufacturers and rewound Because Trail Tech manufactures stators from scratch, a superior level of craftsmanship, performance and value is achieved