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Wehrli Custom Fab Stage 3 high-flow bundle for 2006–2007 Duramax LBZ in gun-metal finish. This comprehensive kit replaces restrictive factory intake and intercooler plumbing with large-diameter aluminum piping, a 4.8-inch turbo intake horn, CNC-machined flanges with double O-ring seals, reinforced silicone boots and a 3" stainless downpipe. It’s a bolt-on assembly that improves airflow, reduces boost leaks and retains factory sensor locations.
Wehrli 06-07 Duramax LBZ High Flow Bundle Kit Stage 3 - Gun Metal
