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The WCFab Stage 3 High Flow Bundle Kit for 2011–2015 Duramax LML 6.6L combines a Stage 2 high-flow intake bundle with a 3" stainless turbo downpipe, fabricated aluminum intake and airbox with dry filter, and upgraded intercooler piping. The package improves airflow—stated gains include up to 33% more total flow over stock in the Y‑Bridge—and ships with hardware, silicone boots and clamps for bolt-on installation.
Wehrli 11-15 Duramax LML Stage 3 High Flow Bundle Kit - Gloss Black
