Engineered specifically for 2006 through 2007 Chevrolet Silverado 2500HD/3500 and GMC Sierra 2500HD/3500 trucks powered by the 6.6L Duramax V8 turbo diesel engine (LBZ and late LLY codes), the Volant Closed-Box Cold Air Intake System (Part # 150-66 / 15066) provides a superior balance of high-volume airflow and under-hood thermal protection.

Factory intake setups restrict high-rpm diesel breathing and expose filters to heat soak. Volant solves this by enclosing a massive high-performance Pro 5 oiled cotton gauze filter inside an insulated polyethylene closed-box housing. This design isolates the air charge from engine bay heat while smoothing incoming turbulence through a high-velocity air duct. Complete with heavy-duty silicone couplers and stainless steel hardware, this system installs easily using factory mounting locations with zero core charge.

Key Features & Benefits

• Closed-Box Thermal Protection: Rotomolded polyethylene air box shields the filter from hot under-hood engine air to deliver cooler, denser oxygen charges.
• Pro 5 Oiled Cotton Filter: Utilizes a washable, reusable 5-layer cotton gauze filtration media designed for maximum airflow volume and long service intervals.
• High-Flow Polyethylene Duct: Smooth, computer-designed intake tube minimizes air turbulence and accelerates velocity straight into the turbocharger.
• Improves Throttle Response: Enhances turbo spool-up time and delivers noticeable gains in horsepower, torque, and towing efficiency.
• Zero Core Charge: Brand-new outright performance upgrade requiring no core deposit or core return shipping.

Technical Specifications

• Manufacturer / Brand: Volant Performance
• Manufacturer Part Number / SKU: 15066
• Alternative Part Numbers: 150666 (PowerCore Version) / VOL-15066
• Product Type: Closed-Box Cold Air Intake System
• Filter Element: Pro 5 Layer Oiled Cotton Gauze (Washable & Reusable)
• Housing Material: Rotomolded Cross-Linked Polyethylene
• Truck Platform: 2006–2007 GM 2500HD / 3500 Silverado & Sierra
• Engine Platform: 6.6L Duramax V8 Turbo Diesel (LBZ / LLY Codes)
• Core Requirement: None
• Warranty: Volant Performance 1-Year Limited Warranty

Vehicle Fitment & Technical Installation Notes

• 2006–2007 Chevrolet Silverado 2500HD / 3500 – 6.6L Duramax Diesel (LBZ & LLY)
• 2006–2007 GMC Sierra 2500HD / 3500 – 6.6L Duramax Diesel (LBZ & LLY)
• Fits Model Years: 2006, 2007 (Classic body styles with LBZ/LLY engines)
• Installation Tip: Remove the factory air box assembly completely. Assemble the Volant closed box housing and secure it to factory lower mounting studs. Slip the high-flow duct onto the turbo inlet with the provided silicone couplers and clamp down securely using a nut driver. Pair with Volant ram air scoop 35066 for ultimate cold-air feed.