Wehrli Custom Fabrication WCFab 4" High Flow Cast Aluminum Turbo Intake Horn for 2017-2025 Chevrolet Silverado / GMC Sierra (6.6L) - WCFab Red - WCF100775-RED

Fits select 2017-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD trucks (6.6L Duramax Diesel). Also compatible with 2019-2024 L5D 6.6L Duramax found in Medium Duty 4500, 5500, and 6500 GM trucks.

The WCFab 4 in. High Flow Cast Aluminum Turbo Intake Horn is engineered to eliminate the restriction of the factory plastic turbo mouthpiece. By utilizing a true 4-inch inlet and a CNC-machined anti-surge face that properly engages the turbo compressor cover, this upgrade provides a 25% greater flow area at the compressor inlet and flows 27% better than the stock component. This bolt-on part improves throttle response and engine performance without requiring additional tuning or modifications.

• CNC machined cast aluminum construction with a WCFab Red powder coat finish
• 27% increased airflow over the OEM turbo inlet
• True 4" inlet with smooth internal transitions for optimized drivability
• Includes #10 ORB threaded billet aluminum hose barb for PCV system connection
• Precision O-ring seal at the face of the turbocharger for a leak-free fit
• Compatible with stock and OEM-style aftermarket drop-in turbochargers
• Works with factory and most aftermarket cold air intake systems
• Replaces OEM turbo inlet 12678756 (GM Part Numbers: 19432816, 12682569)
• Includes all necessary mounting hardware; Made in USA