Circuit Werks latest Honda S2000 AP1 & AP2 Polished Metallic Spun 200 Cell High Flow Catalytic Converter (AKA: High Flow Cats or HFC's). Pictured in the listing is Brush but we only have the Polished in stock and we'll update the photos soon. Could use with stock exhaust or any other aftermarket exhaust. Tri bolt gasket included along with hardware. This "might" not pass smog in some states. Most likely will not throw a check engine light, but it might since this is a 200 Cell High Flow Cats vs your very restricted and possibly clogged cats. Fits all 2000-2009 S2k, including CR's. Our High Flow Cats only weighs 6 lbs. Just like your OEM Cats, ours uses a stamped OEM style flange. This will bolt-on to your stock header or any aftermarket headers with a leak free connection.
The most restrictive part of any exhaust system is the catalytic converter. The stock catalytic converter is meant to filter the flow of the exhaust gases to reduce the amount of harmful gases into the atmosphere. That is a potential performance restrain. Circuit Werks 200 Cell High Flow Cats replaces your stock very restricted catalytic converters and reduce exhaust back pressure by maximizing exhaust flow. This HFC's allows to rev faster or if your S2000 is turbo'ed, this will help to spool up a lot faster and also build boost quicker. The result brings out the vehicle's performance potential by giving it a high flow exhaust system.