Can I reuse this filter, or do I need to replace it?

This is a reusable filter element. Once it gets dirty, you can clean it and put it back in instead of buying a new one each time. Just rinse gently with soap and water, let it dry completely, and reinstall.

Will this filter need any special tools to install?

No special tools required. The filter mounts directly into your factory air box. You'll need basic hand tools to remove the intake housing cover, swap the old filter for the new one, and bolt it back down.

Does this increase horsepower or fuel economy?

A high-flow filter reduces intake restriction, which can support modest gains in both areas. Real-world results vary depending on your engine tune and driving conditions. It's part of a larger intake system approach rather than a standalone power bump.