Shop › TO6 Turbo Mount Flange Image 1 of 3 Image 2 of 3 Image 3 of 3 TO6 Turbo Mount Flange from $165.00 TO6 1/2" mild steel or stainless steel turbine inlet merge flange with 2 1/2" or 3" starter tubes. Material: Select Material Mild Steel Stainless Steel Size: Select Size TO6 / 2 1/2" inlet TO6 / 3" inlet Add To Cart Added! TO6 1/2" mild steel or stainless steel turbine inlet merge flange with 2 1/2" or 3" starter tubes.