Using these Hawk ceramic rear brake pads is straightforward. First, make sure your vehicle matches the fitment notes, like not having Eyesight on certain WRX models or Brembo brakes on BRZ and Toyota 86. When installing, follow the standard brake pad replacement procedures in your vehicle's manual. As for usage, these pads are meant only for street driving. Avoid using them in high - performance racing situations as they're not designed for that. For maintenance, regularly check the brake pads for wear. If you notice excessive noise or a decrease in braking performance, it might be time to replace them. Also, keep an eye on the brake dust accumulation, though these pads produce very little. And remember, if you have any doubts, it's always a good idea to consult a professional mechanic.