I don't think you'll need to invest future funds for a tune. It's included with the stage 1 performance package you're purchasing. You could just purchase a tune/pulley combo, and look into a Bosch10 axillary pump, and Needswings HE unit. Rob just posted a thread with great results here recently. That alone would likely save you possibly $400+. This is with the assumption that Eurocharged is selling the kit with a Johnson pump, HE unit, and the tune/pulley combo.