Powerful Foaming Formula for Deep Cleaning - ’s advanced foaming formula clings to surfaces inside the intake manifold, intake valves, and combustion chamber, providing deep and thorough cleaning. Professional Formula Foaming Intake Valve and Turbo Cleaner with CarbonClear is a powerful, professional-grade aerosol solution engineered to deep clean carbon and fuel deposits from critical engine components in both Gasoline Direct Injection (GDI) and Port Fuel Injection (PFI) systems.