The CRC Industries, Inc. GDI IVD Intake Valve Cleaner is designed to remove harmful deposits from all types of gasoline-powered engines. According to CRC, the GDI IVD Intake Valve Cleaner is sprayed directly into the air intake system at 150 times the concentration of any other premium fuel system additive on the market. The GDI IVD Intake Valve Cleaner removes up to 23 percent of carbon build-up in the first hour of use and technicians can simply spray past the MAF sensor, through the air intake every 10,000 miles to increase power and torque, stabilize rough idles, solve rough starting problems, reduce emissions and improve fuel economy.