This ring sits between the right and left side heat exchangers on the crossover pipe. We recommend replacing your exhaust gaskets and seals each time you remove your exhaust. If you reuse an old gasket or seal, odds are it will leak and create noise or fill the cabin with noxious fumes. Sold individually. 1 necessary per car.
"Crossover Pipe Sealing Ring 911 / 930 1974-89"