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The Wehrli (WCFab) 3" driver-side hot-side intercooler pipe for 2017–2019 L5P 6.6L Duramax replaces the factory two-piece 2.5" pipe with a one-piece high-flow 3" unit. It includes upgraded silicone boots and stainless T-bolt clamps, increases reliability over factory boots, and is a bolt-on replacement that lists the GM part number it supersedes for direct fitment on specified Silverado and Sierra 2500/3500 HD trucks.
Wehrli 17-19 Chevrolet 6.6L L5P Duramax Driver Side 3in Intercooler Pipe - Bronze Chrome
