To use these bushings, first, make sure you have a K-Tuned camber kit as they are designed only for it. Remove the old bushings from your camber kit carefully. Then, install the new bushings in their place. Be aware that we haven't confirmed if they fit OEM upper control arms, so double - check before trying to use them there. For maintenance, regularly inspect the bushings for any signs of wear and tear. Keep them clean from dirt and debris to ensure a long lifespan.