If I fitted one of these is going to pass an MOT or will I need to put the original back on?:
http://www.performanceparts-ltd.com/store/uk-BMW-S_1000_RR-9700-2010/140-Exhausts-Akrapovic/214453-Complete_Stainless_Race_System__Carbon_EMarked_Silencer_With_Removable_Baffle__Not_Road_Legal_As_No_Cat_Converter
http://www.performanceparts-ltd.com/store/uk-BMW-S_1000_RR-9700-2010/140-Exhausts-Akrapovic/214453-Complete_Stainless_Race_System__Carbon_EMarked_Silencer_With_Removable_Baffle__Not_Road_Legal_As_No_Cat_Converter