Wehrli Custom Fabrication 3.5in Intake Horn (4.8in Inlet) for 2006-2010 Chevrolet/GMC LBZ/LMM (6.6L) - Gloss Black - WCF100412-GB

Fits select 2006-2010 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD trucks (6.6L LBZ/LMM Duramax).

Maximize your engine's breathing capacity with the Wehrli Custom Fabrication (WCFab) 3.5-inch intake horn. This cast aluminum component features a massive 4.8-inch inlet—the largest available on the market—specifically engineered to eliminate the restrictive factory resonator connection and streamline airflow to the turbocharger. Finished in a high-quality gloss black single-stage powder coating, this upgrade provides both performance gains and a clean, custom engine bay aesthetic.

Note on Compatibility: This intake horn is compatible only with intake systems that utilize a removable boot and two clamps for the horn-to-pipe connection. It will not fit OEM or aftermarket systems where the boot is molded directly to the intake pipe.

• High-flow cast aluminum construction
• Large 4.8-inch inlet diameter for maximum air volume
• Eliminates restrictive factory resonator connection
• Durable gloss black single-stage powder coat finish
• Includes PCV port and O-ring seal for a factory-quality fit
• Supplied with silicone reducer boot and stainless steel T-bolt clamps
• Made in the USA
• Manufacturer Part Number: WCF100412-GB