GMC Sierra HD Performance Air Intake - Wehrli - Y-Bridge Kit - Candy Red - `07-`10. Purpose-built for the 2007.5–2010 Duramax LMM, this 3-inch two-piece Y-bridge and intercooler piping upgrade improves airflow and reliability with a durable Candy Red powder coat.

Replacing the weak OEM slip-fit bridge, the bolt-together design provides a secure seal at the air inlet horn and a true 3-inch tract from intercooler to intake runners. Smooth mandrel bends and CNC-machined billet flanges reduce restriction, while provisions for the factory grid heater, throttle valve, and EGR keep functionality intact. Compatible with the OEM lower passenger-side intercooler pipe or WCFab’s 3.5-inch upgrade (WCF100367). No tuning required; bolt-on install. Made in the USA.

Features

• WCFab signature 3-inch two-piece Y-bridge
• 3-inch upper crossover and lower intercooler pipes
• Mandrel bends and CNC-machined billet flanges
• Up to 36% airflow improvement over stock
• Includes silicone boot, T-bolt clamps, MAP seal, O-rings, EGR gasket, hardware, support bracket
• Candy Red powder coat; stock-truck compatible

Have questions or planning a build? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization at both locations. Considering multiple items? Contact us for shipping discounts. We install on premises at both locations.

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