Unique air intake valve cleaner. Very effective in removing deposits from GDI (Gasoline Direct Injection) valves. Cleans carbon and resin deposits from the back of the air intake valve. Dissolves soot deposits caused by heat. Removes up to 46% of carbon deposits within the first hour of use. Increases power and torque. Reduces emissions and saves fuel. stabilizes rough idle. Allows processing without disassembling the engine top. safe for turbos and intercoolers.