Description ATI 2003 to 2007 5.9L Cummins S400 / Stock Plus Twin Turbo Kit 5.9L Cummins S400/Stock Compound Turbo Kit. Recommended for daily driver work trucks and tow rigs looking for increased horsepower, better fuel mileage, and EGT’S with stock-like turbo spool THIS IS A DIRECT BOLT ON KIT NO CUTTING OR MODIFYING REQUIRED THE EXHAUST CONNECTS TO THE STOCK DOWNPIPE LOCATION *NOTE IF THIS IS A 2003 – EARLY 2004 IT WILL REQUIRE 2004.5 – 07 STYLE DOWNPIPE * DOWNPIPE OPTIONS ARE AVAILABLE IN THE ADD ON SECTION *Keeps passenger-side factory battery location     Kit includes: ATI CAST S400 75MM TURBO W/1.32AR EXHAUST HOUSING 5″ S&B CLEANABLE AIR FILTER ATI EXHAUST HOUSING BLANKET STAINLESS STEEL OIL FEED LINE & DRAIN TUBE 3.5″ DOWNPIPE COLD CHARGE PIPE BETWEEN TURBOS O-RING SEALS SILICONE BOOTS T-BOLT CLAMPS V-BAND CLAMPS INSTALL HARDWARE