With the weather at the moment, my S4 gets mighty dirty very quickly. Do mud flaps help with this? I have seen these on eBay Audi A4 S Line Mudflap kit mud flaps front/rear Quality 08-2011 B8 model Quality | eBay But not sure they fit an S4 as I know Audi say you cannot get mud flaps for the S line models. Any comments? Ta