GMC 2500 HD Performance Air Intake - Wehrli - High Flow Intake Horn - Sparkle Copper - 2017-2025. This cast-aluminum turbo intake horn delivers a true 4 in. inlet for your 6.6L Duramax L5P, finished in a durable Sparkle Copper powder coat.

Engineered to replace the restrictive OEM plastic mouthpiece, this WCFab intake horn improves airflow to the turbo for crisper throttle response and refined drivability. It bolts on with no tuning required, includes a billet PCV connection, and seals to the turbo with an O-ring. Compatible with OEM and aftermarket cold air intakes and drop-in turbos, and also fits the L5D 6.6L in 2019–2024 GM Medium Duty 4500–6500. Made in the USA.

Features

• True 4 in. inlet with optimized anti-surge face
• CNC machined cast aluminum; Sparkle Copper powder coat
• 25% greater flow area at compressor inlet; flows 27% better than stock
• Bolt-on install; no tuning required; hardware included
• Works with OEM and aftermarket cold air intake systems
• Compatible with stock and drop-in turbos with larger compressor wheels
• #10 ORB billet PCV hose barb and turbo face O-ring seal

Questions or planning an install? Call our Austin, TX or Los Angeles, CA area teams—we offer installation and customization services at both locations: 512-982-9393 (TX), 562-981-6800 (CA).

Purchasing multiple items? Contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov