04-07 Duramax LLY/ LBZ 4.5" HSP Intake System Bundle
** 1-2 Week Build Time**
This kit will allow you and your engine to breathe easy. Featuring a mandrel bent 4.5 inch intake tube for massive air flow gains, with HSP's signature heat shield box eliminating unwanted hot air entering the cold air intake. For every 1 degree increase of intake air temperature will result in a 3hp loss. This kit also features HSP's high flow turbo mouthpiece.
This turbo mouthpiece will give you the ability to reroute your factory PCV system and remove the factory resonator box, eliminating unwanted engine oil gumming up the turbo, and intake system (PCV re-route sold separately see 003-1-HSP). Details: