Diesel Power Source S480 Twin Turbo Kit (64mm with S480 Turbocharger) for 1998.5-2002 Dodge Cummins Direct bolt-on application, no cutting or fabrication needed. High Flow 3-PieceExhaust Manifold included in kit. Comes with a 4 Exhaust Downpipe DPS 64mmTurbo (small turbo)/S480 Borg Warner (S400 with 80mm compressor wheel) as large turbocharger. Adjustable boost pressure.