Vibrant Performance 3-Bolt Stainless Steel Flange 2.75"

3/8 Thick Stainless Steel 3 Bolt Flange

matching gasket available - https://www.waltonmotorsport.com/product/vibrant-performance-3-bolt-high-temperature-exhaust-gasket/

122.4mm Width x 119.1mm Height x 113.3mm Bolt Hole Circle x 9.5mm Thick (2.75"ID)