Wehrli Custom Fab (WCFab) 4in Performance Air Intake with Air Box for 2006-2007 GMC Sierra 2500HD Duramax LBZ, Semi-Gloss Black. This system replaces restrictive factory parts with a high-flow aluminum tube and serviceable dry filter.

The 4in fabricated aluminum tube uses smooth bends and an air box that pulls cooler air from the inner fender to help with intake temperatures and turbo response. A removable lid simplifies inspection, and the included hydrophobic pre-filter helps keep the MAF, turbo, and intake tract clean. Premium silicone coupler, stainless T-bolt clamps, and complete hardware make this a straightforward, no-tune, bolt-on upgrade, proudly made in the USA.

Features

• 4in aluminum intake tube; Semi-Gloss Black
• Air box with lid; dry filter
• Hydrophobic pre-filter cover
• Draws cool air from inner fender
• Stainless T-bolts, silicone boot, hardware; no tuning

Questions or want installation/custom work? Call our Austin, TX or Los Angeles, CA area shops: 512-982-9393 (TX) or 562-981-6800 (CA). We install on premises at both locations. Considering multiple items? Contact us for shipping discounts.

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