Wehrli Custom Fabrication WCF100412-CT 4.8in High Flow Turbo Intake Horn

The Wehrli Custom Fabrication WCF100412-CT is a high-flow turbo intake horn (also called a turbo inlet elbow or air intake horn). It replaces the restrictive factory plastic inlet with a CNC machined cast aluminum horn. The larger opening lets more air reach the turbocharger, which improves airflow and throttle response.

Key Features:

• Rated by the manufacturer at 20% more airflow than the stock horn
• 4.8 in. inlet
• CNC machined cast aluminum construction
• Includes a port for the PCV connection
• Eliminates the factory resonator connection for a cleaner look and a more aggressive turbo and engine sound
• Includes silicone reducer boot, stainless steel T-bolt clamps and O-ring seal
• Custom powder coat finish
• Made in the USA

Cross-reference: Replaces GM part number 98011738. Supersedes Wehrli part number WCF100341.

Installation note: This horn connects with a silicone boot and clamps. It must be used with an intake pipe that accepts a 4 in. boot and clamp. It is not compatible with intakes that have a molded rubber connection that slides onto the OEM horn. It is designed to complement the Wehrli Stage 1 intake kits.