Wehrli Custom Fabrication WCF100412-CRO High Flow Turbo Intake Horn Chevy Orange

The Wehrli Custom Fabrication WCF100412-CRO is a high-flow cast aluminum turbo intake horn finished in Chevy Orange powder coat. Engineered to replace the restrictive factory plastic inlet, this precision CNC-machined horn delivers a measurable increase in airflow to the turbocharger for improved throttle response and overall performance.

With a 4.8-inch inlet — the largest intake horn on the market for this application — this WCFab horn flows 20% more air than stock. The smooth, optimized internal geometry reduces turbulence and pressure drop through the intake tract, helping your turbo spool more efficiently.

Key Features:

• 20% improvement in airflow over the OEM intake horn
• 4.8" inlet — largest available for LBZ/LMM applications
• Precision CNC machined cast aluminum construction for durability and long service life
• Includes PCV port for positive crankcase ventilation connection
• Eliminates the factory resonator connection for a more aggressive intake and turbo sound
• Includes silicone reducer boot and stainless steel T-bolt clamps
• O-ring seal for a leak-free turbo connection
• Finished in bold Chevy Orange custom powder coat
• Designed to complement WCFab Stage 1 LBZ & LMM intake kits
• Made in the USA

Compatibility Note: This intake horn requires an intake pipe that accepts a 4" silicone boot and clamp connection. It is not compatible with OEM-style or aftermarket intakes (such as K&N) that use a molded rubber connection that slides directly onto the factory horn.

Part Number Cross-Reference: Supersedes WCF100341. Replaces GM OEM part number 98011738.