The aFe Turbo Inlet Tube increases performance to your Duramax by 9hp and 23lbs  x ft. torque. The Bladerunner turbo inlet tube also improves turbo spool up times and lowers exhaust gas temperature (EGTs).  This unit is constructed out of durable A356-T6 aluminum and uses the patented multi-direction vane (MDV) technology to help guide air through the tube to your turbo.  This kit come complete with turbo inlet tube, inlet adapter with coupling, CCV tube adapter with coupling and all hardware needed for an easy installation.