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naca duct

  1. NACA Duct in Undertray?

    General Maintenance & Repair
    I noticed during my first oil change that the NACA duct in the second photo below was missing from my '05. Do all Tregs have them? What is its purpose? I looked above the belly pan in that location and didn't see any type of tranny cooler or other device which might be fed by a NACA duct...