Exhaust gaskets to suit our range of exhaust flanges, please see below for the bolt center measurements Universal fitment Graphite inner material with steel plate pressed over it - rated to 450 degrees C Fire ring pressed on the inside of port to ensure gasket will not blow out under pressure & heat 2" Exhaust Gasket Center hole = 52mm Bolt centers = 83mm 2.25" Exhaust Gasket Center hole = 58mm Bolt centers = 90mm 2.5" Exhaust Gasket Center hole = 65mm Bolt centers = 89mm 3" Exhaust Gasket Center hole = 78mm Bolt centers = 108mm
