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. Constructed from 304L aircraft grade stainless steel, these systems are built to withstand harsh conditions. All products are manufactured in the UK and distributed to over 90 countries worldwide. - Direct replacement for the original exhaust system - Available in multiple configurations for sound customization - Manufactured from 304L aircraft grade stainless steel - Made in the UK and distributed globally Specifications: - Pipe Diameter: 76.20 - Fitment Time: 1.5 to 2 hours (including removal of OE system) - Race Product: No - EMarked: Yes - EMark Number: M135iF40 Kit comes with: - Adaptor for OE GBP - MSBM326 - Connecting Pipe - MSBM327 - Rear Silencer Assembly - MSBM328 - LH Valved Outlet Pipe - MSBM329 - RH Outlet Pipe - MSBM330 - Brushed Titanium GT (round) 115 Exhaust Tip - MSTIP252 Vehicle Compatibility: - 2019 and later BMW 1 Series M135i xDrive 5 Door (F40 OPF/GPF Equipped)