High Flow Bundle Kit Stage 2 for 2017-2019 Duramax L5P Bronze Chrome

The Wehrli 100441-BC is a Stage 2 High-Flow Intake Bundle Kit for 2017-2019 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with the 6.6L L5P Duramax engine. It combines a Stage 1 High Flow Bundle and a Stage 2 Intake Kit to improve airflow, efficiency, throttle response, and turbo spool up. The kit replaces factory plastic components with 14-gauge aluminum piping, including a 4-inch intake pipe, a 4-inch intake horn with PCV port and surge ring, and an air box enclosure with a dry filter and Outerwears pre-filter. It also upgrades intercooler piping with heavy-duty 3-inch driver side and 3.5-inch passenger side L5P pipes, eliminating the OEM resonator and leak-prone plastic/rubber pipes. Features CNC machined flanges with double O-ring seals, silicone boots, and stainless steel t-bolt clamps. Compatible with stock trucks (no tuning required). Available in powder-coated finishes like Bronze Chrome (BC), WCFab Red, WCFab Grey, Illusion Purple, Candy Teal, Bengal Red, Gloss White, and Gloss Black. Wehrli Custom Fabrication claims up to a 25HP gain with a Max Effort Tune.