Chevrolet Silverado 2500HD Performance Air Intake by Wehrli (WCFab) — 4in Cold Air Intake Kit with Air Box, Gun Metal, for 2001–2004. Replaces the factory LB7 intake with a 4-inch aluminum tube and enclosed box for cool, consistent airflow.

Engineered to reduce restriction and sharpen response, it draws fresh air from the inner fender while smooth 4-inch piping feeds the turbo. The dry filter with hydrophobic pre-filter helps keep the MAF clean. A removable lid speeds checks, and stainless T-bolt clamps, silicone boot, and seals make for a sturdy bolt-on—no tuning required.

Features

• Fits 2001–2004 Silverado 2500HD 6.6L Duramax LB7
• Fabricated 4 in aluminum intake tube
• Enclosed air box with removable lid
• Dry filter with hydrophobic pre-filter cover
• Gun Metal powder coat; stainless T-bolt clamps; Made in USA

Questions or ready to schedule? Call Austin, TX at 512-982-9393 or Los Angeles area, CA at 562-981-6800. We offer installation and customization at both shops. Buying multiple items? Ask us about shipping discounts. We install on premises at both locations.

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