Wehrli 2004.5-2005 LLY Duramax 4in Intake Kit with Air Box Stage 2 WCFab- Grey

High flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly. Replaces restrictive plastic factory parts on diesel engines for improved performance. Features 4" piping with smooth bends for increased air velocity, volume, and aggressive engine/turbo sound. Includes high-quality hardware, silicone boot, seals, stainless steel t-bolt clamps, and removable air box lid. Comes with a hydrophobic pre-filter cover. Includes High Flow 4.8 in. Cast Aluminum Turbo Intake Horn, compatible with OEM and upgraded VGT turbos, which removes restrictions and eliminates the factory resonator. Finished in custom powder coat colors. Supercedes WCF100637.