The GMC 3500 HD Performance Air Intake by Wehrli is engineered for automotive enthusiasts looking to enhance their vehicle's power and performance. Specifically designed for 2001-2004 models, this high-flow cast 4-inch air intake, finished in a striking Cat Yellow, serves as a direct replacement for the restrictive OEM turbo mouthpiece, presenting a significant upgrade in airflow efficiency.

Going beyond aesthetics, the Wehrli Performance Air Intake is crafted from precision CNC machined cast aluminum, ensuring durability and a smooth flow transition to the turbo compressor cover. This results in optimized airflow, improved engine performance, and enhanced throttle response. Designed to integrate seamlessly with both factory and aftermarket IHI Turbos, this intake can lead to noticeable horsepower gains especially on max-effort tuned trucks and vehicles equipped with upgraded turbos, facilitating up to 20 HP improvements.

Features

• True 4" Inlet Turbo Intake
• Flows 40% Better than Stock
• Precision CNC Machined Cast Aluminum Construction
• Custom Powder Coated Finish in Cat Yellow
• Compatible with 2001-2004 Chevrolet Silverado or GMC 2500/3500 HD
• O-Ring Seal at Face of Turbocharger
• Includes Mounting Hardware
• Made in the USA

If you're looking for a robust and reliable upgrade for your Duramax LB7, the Wehrli 4-inch High Flow Intake Horn is your go-to choice. Feel free to contact us directly with any inquiries or to explore our installation and customization services at our locations in Austin, Texas and Los Angeles, California. Reach us at 512-982-9393 (TX) or 562-981-6800 (CA). For those interested in multiple purchases, get in touch for potential shipping discounts. We also offer installation services on premises at both locations.

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