The BG EGR Service Tool completes the total decarbonization of the engine fuel system. By removing the EGR valve and installing the proper adaptor plate, the technician can quickly and efficiently flush out accumulated deposits from EGR circuit and exhaust tubes. Deposits are dissolved for easy digestion by the engine combustion system. To be used with BG ISC® Induction System Cleaner‚™ Part No. 211.