Capristo Exhaust system incl. 250 cells sport catalysts Porsche 991.1/2 Turbo und Turbo S Engine: Information: When the flaps are open, the exhaust gases are led directly out of the catalyst to ensure maximum flow. The original tail pipes are used. The increase in power is 8 HP Homologation: not street legal Part No.:02 PO 039 03 037