Turbocharger Assembly(w/o Wastegate)3406E/C15 Acert/C16 Turbo Model S478,S400SX,S410SX (78mm -1.32 A/R) A Good Turbo if you need a little more Horsepower without having to change Injectors. Direct Bolt connection for 3406E/C15/C16.This Turbo can be used as a replacement Turbo from Twin Turbo to Single Conversion Turbo.Performance Stage 1 / Horsepower Range 475-600HP