BMW M-Diff Locker Explained
BMW Regulated Rear Axle Differential Locker (M-Diff). I'm often asked about the controller I'm using. I'm using a FutureKit Small motor PWM modulator similar to FutureKit Model FK823. You can find this controller at: https://www.bakatronics.com/shop/item.... I believe I have it set somewhere between 300 to 500 Hz.