its the bling factor dude, bling gets the ladies (or dudes if you're into that). on a serious note: i never got SS lines for performance gains, when i bought mine most of the research was towards the life of the line. OEM rubber needs to be replaced x amount of years, whereas SS lines last much much longer (pays for itself in this aspect). also from before with rubber lines at the track, and after with SS lines at the same track, there was a much noticeable difference in feel of braking mostly towards the end of the day when the fluid/lines had been abused via heat. oem had serious fade, ss lines felt as solid as they did in the morning.