The Cat-Back systems are designed as direct replacements for the original exhaust, offering improved sound and aesthetics. Multiple configurations are available, allowing the owner to select the desired increase in exhaust volume or a more aggressive tone. Manufactured from 304L 'Aircraft' Grade stainless steel, these systems are built to withstand harsh conditions. All products are made in the UK and distributed to over 90 countries worldwide. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Constructed from 304L 'Aircraft' Grade stainless steel - Designed and manufactured in the UK Specifications: - Pipe Diameter: 60.32 - Race Product: No - EMarked: No Kit comes with: - MSBM130: Centre Silencer - MSBM130 - MSBM169: Rear Silencer - MSBM169 Vehicle Compatibility: - 2001-2007 BMW 3 Series E46 M3 3.2 Coupe/Cabriolet - 2003-2007 BMW 3 Series E46 M3 CSL