CRC 05319 GDI IVD Intake Valve and Turbo Cleaner 11oz Can Do you want to remove carbon buildup from the intake valve of your GDI engine without the expense of a costly tear down? CRC GDI IVD Intake Valve & Turbo Cleaner is the solution you need! This intake valve cleaner uses a specialized formula to break down carbon deposits that choke your vehicles performance. Regular cleaning with CRC GDI IVD Intake Valve & Turbo Cleaner will increase power and torque, stabilize rough idling, solve starting problems, and reduce vehicle emissions. Removes 46% of Carbon Deposits Internal combustion can be messy in GDI engines. Without the flow of gasoline washing contaminants out of the valves, carbon and varnish build up over time.