T25 T28 GT25 GT28R GT2876R Turbo Inlet Exhaust 4Bolt. 1X T2-4 bolt Flange. The thickness of the flange is 0.45". 1 x T2 - 4 bolt Gasket. Gasket is graphite coated with aluminum core laminate. In order to keep our prices low, we have the following purchasing policies.