1、Applicable Models: Wheel stud pilot pin is replacement for Saab and replacement for PSA. Please confirm whether your model is applicable before buying. 2、Improve Fuel Efficiency: Wheel hanger can ensure that the vehicle's tires have a larger contact area with the ground, reducing resistance and friction when driving, thus reducing energy consumption and improving fuel efficiency when the vehicle is running. 3、Driving Safety : Rim stud pilot pin can help the vehicle maintain a stable driving direction and angle, avoiding the vehicle from deviating and drifting during driving, which improves the safety performance of driving. 4、Sturdy and Stable: The wheel hangers are manufactured from aircraft aluminum alloy 7075. This robust material ensures reliable strength, durability and high performance. 5、Easy Installation: The wheel alignment pins are very easy and convenient to install, no professional skills and tools are required without any impact on the structure and performance of the vehicle.