Description Reviews Akrapovic Stainless Steel Downpipe with Catalytic Converter - For those of you that demand the maximum in power output and weight reduction, Akrapovic offers an optional down pipe with a sport catalyst (100cpsi).When installing Akrapovič aftermarket optional down pipes with sports catalytic converters or without catalytic converters, which are developed for use on closed tracks only, remapping the ECU is mandatory. When installing Akrapovič aftermarket exhaust system that was developed for use on closed tracks, we recommend remapping the ECU in order to prevent potential »check engine light« warning signals.THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE. Fits the following vehicles: MINI R56 LCI (05/2009 — 11/2013) MINI Clubman R55 LCI (05/2009 — 06/2014) MINI Cabrio R57 LCI (04/2009 — 06/2015) MINI Coupé R58 (12/2010 — 05/2015) MINI Roadster R59 (01/2011 — 04/2015)