Duramax Street Intake

Features:

• Replaces factory y-bridge entirely
• Cast one-piece intake manifold design
• Improves airflow and horsepower potential
• Machined for 3.5" V-band connection
• Vanjen option available upon request
• Built for extreme, high-boost applications
• Pairs well with Wagler T4 Twisted Pedestal
• Not compatible with OEM turbocharger

Built For Trucks That Left Stock Behind

Once you've moved past the factory turbocharger setup on your LLY, LBZ, or LMM Duramax, the factory y-bridge becomes the next bottleneck standing between your engine and real airflow. The Wagler WCPC6622.3 Street Intake Manifold is built to eliminate that restriction entirely, replacing the factory piece with a cast one-piece design engineered for improved airflow and real horsepower gains. This isn't a bolt-on upgrade for a stock truck, it's purpose built for guys running aftermarket turbo setups who need an intake that can keep up with serious boost. The intake neck is machined to accept a 3.5 inch V-band connection standard, giving you a secure, reliable seal even in the most extreme applications, with a Vanjen option available if your build calls for it. Wagler specifically designed this manifold to pair well with their own T4 Twisted Pedestal setup, making it a natural fit for anyone already building around Wagler's turbo mounting components. If you're chasing serious power numbers on your Duramax and the factory y-bridge is holding back your setup, this manifold removes that limitation for good. It's a build-specific part for owners who know exactly what they're working toward.

Cast Construction Engineered To Replace The Factory Y-Bridge

The Wagler WCPC6622.3 Street Intake Manifold is engineered for 2004.5-2010 GM Silverado and Sierra 2500HD and 3500HD trucks equipped with the 6.6L Duramax LLY, LBZ, or LMM engine. This aftermarket intake manifold fully replaces the factory y-bridge with a cast one-piece design intended to improve airflow and support increased horsepower output. The intake neck is precision machined to accept a 3.5 inch V-band connection as the standard configuration, with a Vanjen fitment available upon special request for builds that require it. This manifold is specifically designed around aftermarket turbocharger applications and is not compatible with the OEM turbocharger, making it a component intended for trucks already running or planning an aftermarket turbo setup such as Wagler's own T4 Twisted Pedestal. For sealing, Wagler specifies McMaster-Carr O-ring part number 9396K175, sized at 4.250 ID by 4.4375 by .103 inch thick, for owners who need a replacement down the line. Given its extreme-application design and OEM turbo incompatibility, this manifold is best suited for a dedicated performance build rather than a factory-turbo daily driver.

Fitment: 2004.5, 2005, 2006, 2007, 2008, 2009, 2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY/LBZ/LMM

Notes:

• Not compatible with the OEM turbocharger, requires aftermarket turbo setup
• Intake neck machined for 3.5" V-band standard, Vanjen available upon request
• Replacement O-ring: McMaster-Carr #9396K175, 4.250 ID x 4.4375 x .103 thick
• Pairs well with Wagler T4 Twisted Pedestal turbo mounting setup
• Intended for performance/race applications, not a stock-turbo bolt-on