Mini R50/R52/R53 - Manifold (including Cat Bypass)The manifold is the key component part of every exhaust system on a naturally aspirated car. It is what provides the exhaust gases exit from the combustion chamber to allow the engine to breath and function. Milltek Sport Manifold pipework is optimised in length and diameter to allow for freer flowing exhaust gas to exit the engine, allowing it to run more efficiently and increase performance. We bypass the catalyst from the exhaust to create a Decat