Use this K&N intake kit when you want to boost your Cadillac CTS 3.6L's performance. It's great for car enthusiasts who love to upgrade their vehicles and get more power. The kit features a mandrel - bent aluminum intake tube and a washable, reusable filter. It comes with a heat shield or air box to keep the intake air cool. Installation is quick, taking less than 90 minutes. Just be aware that some parts may not be legal in California.