KYOSTAR Catless Downpipe for 2007-2016 MINI Cooper S R55 R56 R57 R58 R59 R60 N18 1.6T Upgrade your compatible MINI Cooper S equipped with the N18 1.6T turbocharged engine with the KYOSTAR Catless Downpipe. Designed as a performance-oriented replacement for the factory downpipe configuration, this downpipe provides a freer-flowing exhaust path for compatible MINI R-series applications. The catless design removes the catalytic converter section from the downpipe assembly,