Wehrli Custom Fabrication Stage 2 High Flow Intake Bundle Kit for 2017-2019 Chevrolet/GMC 2500/3500 (6.6L) - Red

Fits select 2017-2019 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD models equipped with the 6.6L L5P Duramax diesel engine.

The Wehrli Custom Fabrication (WCFab) Stage 2 High Flow Intake Bundle Kit is a comprehensive induction and charge-pipe overhaul designed to eliminate the significant bottlenecks found in the factory L5P air system. This kit replaces the restrictive OEM air box and intake horn with a high-flow 4-inch aluminum system and upgrades the entire charge path. By replacing the undersized 2.5-inch factory hot side pipe and the leak-prone plastic cold side pipe with heavy-duty aluminum units, this kit ensures maximum airflow and reliability under high boost pressures.

Constructed in the USA from mandrel-bent 14-gauge aluminum, the kit features a 3-inch hot side pipe and a 3.5-inch cold side pipe. WCFab has replaced the failure-prone OEM clip-ring design at the Y-bridge with a robust silicone boot and stainless steel T-bolt clamps. The air box features a removable lid for easy inspection of the dry filter and an included hydrophobic Outerwears pre-filter to protect the MAF sensor and turbo from contaminants.

• Manufacturer Part Number: WCF100441-RED
• 4 in. Mandrel-bent aluminum intake pipe and high-flow intake horn
• 3 in. Driver-side (Hot) intercooler pipe
• 3.5 in. Passenger-side (Cold) intercooler pipe
• Heavy-duty 14-gauge aluminum construction with Red powder coat finish
• Includes dry filter assembly and hydrophobic pre-filter cover
• CNC machined flange with double O-rings for a leak-free boost seal
• Heavy-duty silicone boots and stainless steel T-bolt clamps included
• Direct bolt-on installation; no ECU tuning required
• Retains factory sensors and mounting points