ITEM NAME:T3 (5 Bolts) T3/T4 Turbo Downpipe Flange Description: Larger Open Diameter: 2.25" Smaller Open Diameter For wastergate: 1.0" 1/2" Thick 1" External Wastegate Hole Fit T3 (5 Bolts) Turbo Outlet Precision Cut Flange Specification: Material: Stainless Steel Package Includes: 1 Piece Turbo Downpipe Note: Please double check your turbo oil feed thread before you order this kit. If you have any questions about the product, please.1 Piece Turbo Downpipe. Fit T3 (5 Bolts) Turbo Outlet. Precision Cut Flange. SKU: DMO0018833652036120.