The manifold is a key component of every exhaust system on a naturally aspirated car. It provides an exit path for exhaust gases from the combustion chamber, allowing the engine to breathe and function properly. Milltek Sport manifold pipework is optimized in length and diameter to enable freer-flowing exhaust gas to exit the engine, improving efficiency and increasing performance. The catalyst is bypassed to create a 'Decat' system, which eliminates the catalyst to greatly enhance gas flow and performance by removing the restriction caused by the catalyst. - Optimized pipework for improved exhaust gas flow - Decat system eliminates the catalyst for enhanced performance - Designed and manufactured in the UK - Suitable for a range of Mini Mk1 models Specifications: - Pipe Diameter: 63.50 - Fitting Time: 2 to 3 hours (including removing OE system) - Race Product: Yes - EMarked: No Kit comes with: - MSM361: Manifold Assembly - MSM361 - MSM362REP: Decat Assembly - MSM362REP Vehicle Compatibility: - 2001-2006 New Mini Mk1 (R50) Cooper 1.6i - 2001-2006 New Mini Mk1 (R50) One 1.6i - 2004-2008 New Mini Mk1 (R52) Cooper S Convertible - 2002-2006 New Mini Mk1 (R53) Cooper S