Specification:Exhaust GasketOur muli-layer Graphite Gaskets help ensure a proper,leak-free seal for your 3 bolt flanged connections.These gaskets are suitable for high temperature service and are available in sizes(Inside diameter).Application: High Temperature ServicegerFeatures: Inner circle steel reinforcedInlet Size (Pipe Side): 3"Center to center: 85.5mm（please refer to the picture for Center to center size)Please allow 1-5mm error due to manual measurement.Exhaust FlangeOur Exhaust Flanges feature 1/2"(12.7mm) thick T304 stainle steel, it'great for custom turbo kits for connections or upgraded OEM exhaust kitMaterial: 304 Stainle SteelSize: 3.0" IDThick: 1/2"(12.7mm) approx.Bolt Circle: 89mmOverall flange width: 111mmOverall flange height: 109mmFeatures:1.Slotted grooves bolt hole to enable flange to fit most application2.1/2"(12.7mm) thick to ensure the flange will not flex under weld,stre or bend under normal conditions.Package Include:1pcs Exhaust Gasket + 1pcs Exhaust Flange as the pictures showNote:Please allow tiny colour & size difference. Images are for reference and may differ slightly from your actual item.Profeional installation is highly recommended.