FAST Engine Control System XFI Sportsman & EZ LSA complete laptop tunable EFI system for LS series engines is now available with ignition control under one part number. This kit makes it easier than ever to take full control over your LS series engine. Capable of running with boost and rowdy camshafts, this XFI Sportsman kit is the only choice for an all inclusive, comprehensive kit that will best manage your LS's fuel and ignition needs.