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The Wehrli Custom Fab Stage 2 4" intake kit for 2001–2004 Duramax LB7 is a high-flow aluminum intake with enclosed air box and dry filter, now tuned with a 4" turbo intake horn to reduce OEM restrictions. The kit includes Outerwear pre-filter cover, silicone boot, stainless t-bolt clamps, and all installation hardware for a bolt-on upgrade. Finished in WCFab red powder coat and made in the USA.
Wehrli 01-04 Duramax LB7 4in Intake Kit with Air Box Stage 2 - WCFab Red
