50-State Street Legal: this ProCharger System is 50-state street legal and CARB Approved under Executive Order Number D-365-8.
Spark plugs: ProCharger strongly recommends picking up a new set of one step colder spark plugs (like the NGK 6510 Iridium Plugs) when installing this supercharger kit on your 5.0L F150 and gapping them down to .034".