MPI Performance of Boise, ID has just released their bolt-in compound turbo kits for the 2008 GM LMM Duramax. MPI has been engineering some of the best direct bolt-in turbo kits for the LB7, LLY, and LBZ engines for years. MPI's test truck with minimal mods is already running low 12's at the track. Want to make your Duramax run? You might want to check into a compound kit from MPI.