Increase your IQ golf carts speed without a loss in torque, without replacing your gears, or any motor/controller upgrades.Most can expect to see 2-8 MPH gain depending on the health of your batteries. Our parts meet or exceed OEM quality standards. FLIP YOUR TOW/RUN SWITCH BEFORE INSTALLATION. Simply jack up the rear of your cart, remove your passenger side tire, remove (2) screws holding speed sensor to motor, replace magnet in motor, and re-install! Fits the Following Cart(s): Club Car (IQ) models with ADC motor ONLY! If you have questions regarding if your Club Car has a IQ system with ADC motor or a GE motor . The easiest way to tell is by checking the serial number prefix. If your serial numbers starts with: AQ, CE, FD, HD, PE, or PQ then you have a cart with a IQ system. You can also look at the motor controller part number. If your model number starts with “1510” then you also have an IQ system.Product Description Installation Instructions: 1: Flip the Tow/Run