... welded, mirror polish 2.1.8mm thinkness for pipe,12mm thickness for flanges 3.Strict quality control ... exhaust tips in SS304, 1.5mm tube thicknessBeautiful weldjoint, flat Flange and clean air holesExhaust system in Mandrel ... Bend Piping with TIG WeldNew bolts, nuts and gaskets are includedAccept customeized orders to meet the ... CATBACK Exhaust System includes header, down pipe and catback