Will this filter require any modifications to install?

No. It mounts directly into the factory airbox without cutting, drilling, or additional hardware. Swap it in the same way you'd replace a stock filter.

Do I need to tune the car after installing this?

Not required. The high-flow design works within the stock fuel map. A tune will unlock more gains, but the filter will function and improve throttle response on its own.

How often does this filter need replacement?

Check it every 15,000 miles or annually. High-flow filters often last longer than OEM units because of their larger surface area, but local conditions (dusty driving) will affect service intervals. Clean or replace as needed.