Use this K&N Typhoon air intake system when you want to enhance your Ford Focus RS's performance, whether it's for daily driving or a bit of weekend racing. It's perfect for car enthusiasts who want an easy - to - install upgrade that can boost their engine's power. The air intake comes with a high - flow air filter and a heat shield. The oversized cone - shaped air filter can last up to 100,000 miles. It usually takes less than 90 minutes to install using common tools and existing factory mounting points.