high-flow catalytic converter; replaces the stock cat; bolts to Supersprint header 830601 and to aftermarket exhaust. When tuning the car for maximum horsepower, you have to remove the bottlenecks in the stock exhaust. This cat flows much better than stock, which makes it perfect for cars with a header and other major mods.
Applications: 2001-2006 MINI Cooper S R53
2005-2007 MINI Cooper S Cabrio R52
