Home - ButlerBuilt Motorsports Equipment: NACA Ducts
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ButlerBuilt® Dual Hose Black Duct - 10.5" x 9.0" x 4.5"

Air or Brake Duct, Dual 3 in Tube, NACA, Molded Plastic, Black, Each
Limited Supply: only 4 remaining
Availability: Same Day Shipping!
Shipping: Orders over $149 ship free. Oversize items are excluded.
Was: $24.99
Sale: $23.85
Save: 5%
Save: $1.14


Butler Built Air Ducts are used by many top NASCAR competitors. Computer aided design (CAD) provides optimum aerodynamic shape for smooth uninterrupted air flow. The NACA ducts can be installed in side windows or body panels to direct cool outside air to brakes, oil coolers or cockpit. (Uses 3" hose.)


Shipping Information

  • Item Requires Shipping
  • 1.2 lbs.
  • W9.0000” x H4.5000” x L12.0000”
  • Orders over $149 ship free. Oversize items are excluded.

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