GMC Sierra 3500 HD Performance Air Intake – Wehrli Stage 2, Sparkle Copper (2020–2025). Bolt-on, no‑tune intake for L5P 6.6L Duramax.

This fabricated aluminum kit replaces restrictive factory plastic with a 4 in. intake pipe, larger intake horn, and a sealed air box drawing cool air from the hood Ram Air duct and inner fender. Smooth bends improve airflow for quicker response, cooler intake temps, and a stronger engine/turbo note. Includes dry filter, silicone boot, and stainless T‑bolt clamps. Note: disable the GM Air Filter Monitor System to avoid a Service Air Filter message.

Features

• 4 in. aluminum intake pipe and oversize horn
• 10‑ga aluminum air box and lid; seals to hood Ram Air
• Dry filter with Outerwears pre‑filter
• Silicone boot and stainless T‑bolt clamps
• Sparkle Copper powder coat; Made in USA; no tuning required; works with stock trucks

Questions or want it installed? Call Austin, TX 512-982-9393 or Los Angeles, CA area 562-981-6800. We offer installation and customization at both locations.

Buying multiple items? Contact us for possible shipping discounts. We install on premises at both locations.

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