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 achieve 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 globally. - Direct replacement for the original exhaust system - Available in multiple configurations for sound and tone customization - Constructed from 304L aircraft grade stainless steel - Made in the UK and distributed to over 90 countries Specifications: - Pipe Diameter: 70.00 - Race Product: No - EMarked: No Kit comes with: - LH Connecting Pipe - MSBM178 - RH Connecting Pipe - MSBM179 - Rear Silencer - MSBM180 Vehicle Compatibility: - 2007-2011 BMW 3 Series E90 M3 4.0 V8 Saloon / Sedan - 2007-2013 BMW 3 Series E92 M3 4.0 V8 Coupe - 2007-2013 BMW 3 Series E93 M3 4.0 V8 Convertible