The GMC Sierra HD Performance Air Intake by Wehrli, Stage 2 in Gun Metal, is designed for the 2001-2004 Duramax LB7. This high-performance air intake system enhances your diesel engine by replacing restrictive plastic factory parts with premium materials to boost overall performance.

This performance air intake system features a high-flow, fabricated aluminum intake pipe, and an air box enclosure with a dry filter assembly. It significantly increases airflow to your turbo, resulting in improved horsepower, torque, throttle response, and cooler intake temperatures. The system utilizes a large diameter 4" piping with smooth aerodynamic bends, enhancing air velocity and volume while producing a more aggressive engine and turbo sound during acceleration. Moreover, the aluminum construction guarantees durability and ease of installation with high-quality hardware, including a silicone boot, seals, and stainless steel t-bolt clamps.

Features

• High Flow 4" Turbo Intake Horn
• All aluminum construction
• Custom powder coat Gun Metal finish
• Easy installation with basic hand tools
• No tuning required, bolt-on application
• Comes with a dry air filter and pre-filter cover
• Made in USA

In conclusion, the GMC Sierra HD Performance Air Intake by Wehrli is an excellent addition for those looking to enhance their truck's performance. If you have any questions or need assistance, please don't hesitate to contact us directly. We have locations in Austin, Texas, and Los Angeles, California, where we also offer installation and customization services. Call us at 512-982-9393 (TX) or 562-981-6800 (CA). If you are considering purchasing multiple items, contact us for potential shipping discounts. Note that we perform installations on-premises at both locations.

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