I just bought a used 06 400sm with 1700 miles on it. The original owners spent some money on some weird mods at at least to me. I noticed that the front brake line has been replaced. It has this goofy billet piece above the bars that is supposed to be for cooling the salesmen said? I just laughed. I also noticed that the front brake has to be pulled a long way to get the tail light to light up. Seems that on this new line they installed a banjo bolt/ pressure switch. I don't like this at all. Can anyone explain to me why someone would do this? Also it has aftermarket chain tensioner blocks. Is this really necessary or just a bling mod?