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The Wehrli Custom Fab Stage 3 High Flow Bundle Kit for 2006–2007 Duramax LBZ upgrades intake and intercooler plumbing to boost turbo airflow and efficiency. The kit includes a large 4" intake pipe and 4.8" intake horn, full 3" Y‑bridge, 3" hot-side and 3.5" cold-side intercooler pipes, CNC flanges with double O‑ring seals, silicone boots, stainless t‑bolt clamps, and a 3" stainless downpipe.
Wehrli 06-07 Chevrolet 6.6L Duramax LBZ Stage 3 High Flow Bundle Kit - Bengal Red
