Mk2 focus St RS style 4-fin diffuser V2Mk2 focus st facelift diffuser Made from fibreglass this diffuser comes in a gloss black double gel coat finish. There is no cutting of the bumper involved with fitting this diffuser and now its fitted with nuts and bolts instead of bonding on, there is also no need to remove the bumper to fit. PLEASE NOTE there is now a pre facelift version of this diffuser please see other products Please note we recommend our parts to be fitted by a reputable body