The 2009+ Cadillac CTS V motor is a masterpiece directly from the factory. It was built for boost, has built in oil squirters for longevity, and a surprisingly efficient supercharger sitting on top of it, even when over-driven. It responds extremely well to modification! A motor is nothing more than an air moving machine. Less restriction and more air ingestion results in more HP! Looking to add a cam and free flowing ported heads or a complete block build, you'll find it here.