Using this ACT clutch kit is a great way to enhance your Subaru's performance. When installing, make sure to follow the included instructions carefully. For Legacy GT spec.B models, don't forget to use the STI flywheel. Once installed, during driving, you'll notice the moderate to heavy pedal effort and aggressive engagement. This is normal and gives you better control, especially during hard shifts. As for maintenance, keep an eye on the clutch's performance. If you notice any unusual noises or a change in the pedal feel, it might be time for a check - up. Regularly inspect the components for wear and tear. The pressure plates and race disc are built to last, but proper care will ensure they serve you well for a long time. Also, follow the manufacturer's guidelines for lubricating the moving parts like the release bearing and pilot bearing to keep everything running smoothly.