Shop › Lycoming Intake Tube Flanges Image 1 of 1 Lycoming Intake Tube Flanges from $25.00 Machined from 6061 Billet Aluminum.Anodized finishes available. Color: Select Color Green Blue Gold Red Violet Clear Anodized Non-Anodized Add To Cart Added! Machined from 6061 Billet Aluminum.Anodized finishes available.