The Paxton Novi SL Supercharger systems are complete, ready to bolt-on. They feature Paxton's patented internal oil reservoir that eliminates the need to source the lubrication from your engine. These kits feature the same power levels and quality parts of the Paxton engine oil-fed systems. The SL technically advanced centrifugal superchargers do not require a connection between the engine oil pan and the compressor gear case... No oil lines! The Paxton NOVI SL features a uniquely configured transmission housing that allows for effective gear lubrication and bearing temperature control. You'll also experience a shorter installation time, and the ability to service the superchargers oil without removal.