Wehrli Custom Fabrication's driver-side 3" intercooler pipe for 2020–2025 Chevrolet 6.6L L5P Duramax replaces the factory two-piece 2.5" piping with a single-piece high-flow 3" unit. It includes upgraded silicone boots, T-bolt clamps, and a custom powder-coat finish; it fits stock trucks with no additional modifications, requires no tuning, and is a bolt-on upgrade to increase intercooler flow and reliability over factory boots.
Wehrli 20-24 Chevrolet 6.6L L5P Duramax Driver Side 3in Intercooler Pipe - Illusion Blueberry