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Wehrli WCF Stage 3 High Flow Bundle Kit for 2017–2019 L5P Duramax replaces restrictive factory intake and intercooler plumbing to increase airflow, reliability, and turbo response. The kit combines a 4 in. intake pipe and horn, upgraded 3 in. driver and 3.5 in. passenger intercooler pipes, and a 3.5 in. ceramic-coated downpipe with heat wrap. Made in the USA with silicone boots, stainless t-bolt clamps, CNC flanges, hydrophobic pre-filter cover, and custom powder coat finish; Wehrli reports a 25 HP gain with the 4 in. turbo inlet when paired with a Max Effort Tune.
Wehrli 17-19 Chevrolet L5P Duramax High Flow Intake Bundle Kit - Chevy Orange
