for japan model4manufacturerOEM same etc.. Release an exhaust gasket with a quality that is equal to or better than. Necessities for Exhaust System replacement and maintenance! The Exhaust Gasket is a non-reusable consumable part that collapses after one use.. It may not be able to demonstrate the original performance when it is reused, exhaust leakage occurs. It is recommended to replace the Gasket with a new one when removing the Exhaust System..