Using the StopTech Sport Axle Pack Front Drilled/Slotted Brake Kit is simple. First, make sure your vehicle is the 2006 - 2007 Subaru WRX as this kit is specifically designed for it. Remove the old brake components carefully and replace them with the parts included in the kit: the slotted/drilled rotors, stainless - steel brake lines, and sport brake pads. When driving, you'll notice an immediate improvement in braking performance. For maintenance, regularly check the brake pads for wear. If they start to get thin, it's time to replace them. Also, inspect the brake lines for any signs of damage or leaks. Avoid overheating the brakes during extended high - speed driving or aggressive braking. This will help keep your braking system in top condition and ensure your safety on the road.