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The Injen EVO7008 Evolution cold air intake is engineered for 2001–2004 GM Duramax LB7 6.6L diesel trucks. Its 2-piece roto-molded housing, boost plenum and massive SuperNano-Web dry filter use a SHUR-LOCK mounting system for secure sealing. Dyno-tuned intake geometry delivers significant gains—reported around +21 hp and +43 lb‑ft—while offering drop-in installation and stainless-steel hardware.
Injen 01-04 GMC Duramax LB7 6.6L Evolution Intake
