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The WCFab Stage 2 4-inch intake kit for 2001–2004 GM LB7 6.6L Duramax replaces restrictive factory plastic parts with a high-flow fabricated aluminum 4-inch intake and air box. It draws cold air through the inner fender, includes a dry filter with a hydrophobic pre-filter cover, silicone boots, stainless t-bolt clamps and a removable air box lid for easy inspection. It’s bolt-on with no tuning required.
Wehrli 01-04 Duramax LB7 4in Intake Kit with Air Box Stage 2 - WCFab Grey
