Aquamist kits come with the own processor and depending which kit you get can run of injector duty cycle or boost pressure. My kit should be arriving tomorrow and has everything apart from a tank. My mate uses the kit in his mr2 and makes loads of difference and also keeping your intake temps down. He has a standard 3sgte engine with bigger turbo and made 294whp on Monday just past. Would of made more but maxed out standard injectors.