Using these K - Tuned front control arms is straightforward. Just remove the old control arms from your 9th Gen Civic (12 - 15 Civic Si and Non Si) and install the new ones. Make sure all bolts are tightened properly. If you're using the spherical bushings for high - performance setups, be aware that they might need a bit more frequent inspection due to the higher stress they'll endure. For maintenance, regularly check the bushings for any signs of wear, like cracks or excessive looseness. Clean the control arms occasionally to prevent dirt and grime from building up, which can reduce their lifespan. If you notice any issues with the handling or feel of your car, it's a good idea to check these control arms right away.