CRC 05319 GDI IVD Intake Valve & Turbo Cleaner 11 oz Proven to clean intake valves on GDI engines and turbo systems Easily installed through the air intake system Highest concentration PEA (Polyether Amine) detergency available Proven to remove up to 46% of GDI Intake Valve deposits in 1 hour 150X more concentrated than fuel additives