Upgrade your 2020-2025 Chevrolet Silverado 2500/3500 HD or GMC Sierra 2500/3500 HD with the Wehrli Stage 2 4-inch Intake Kit, designed specifically for the Duramax L5P engine. Crafted from high-quality fabricated aluminum, this intake system replaces the factory plastic parts, delivering enhanced airflow that translates into improved horsepower and torque. The kit features a dry filter assembly and an oversized intake horn, which is over an inch larger than OEM, to eliminate restrictions and optimize turbo response. The large diameter 4-inch piping with smooth aerodynamic bends increases air velocity and volume, promoting quicker throttle response and cooler intake temperatures by drawing cold air through the hood Ram Air duct and inner fender. The full assembly is finished in your choice of Wehrli’s signature custom powder coat colors, providing a unique look that complements your truck's aesthetic. Installation is straightforward, requiring no tuning or additional modifications, making it a true bolt-on upgrade. The kit also includes high-quality silicone boots, stainless steel T-bolt clamps, an outerwears pre-filter cover, and a durable 10-gauge aluminum air box and lid, ensuring long-lasting performance. Designed to fit stock trucks directly, this intake system enhances engine sound during acceleration and provides improved airflow without the need for tuning. Please note that failing to disable the air filter monitor system may trigger a service message, but the system will show the correct filter life once properly configured. Made in the USA and EPA compliant, this intake kit offers an aggressive look and significant performance gains for your Duramax-powered truck.
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