I just recently put on my Brembo Cross Dtrilled and Slotted rotors and I was just wondering if any of you that have installed these thought that the Brembo's were significantly heavier than the OEM rotors. I still have yet to weigh the OEM ones but it feels that the Brembo's may have been a good 5 lbs heavier. So much for reducing the weight (Rotational Mass). I am definately dissappointed in the rotors. I still have yet to put on my SS lines and bleed the lines which I konw will make the biggest difference, but it seems as the X-Drilled and Slotted rotors are definately overrated. They seem to stop a little bit better, but overall, with a braking improvement close to none and such a performance loss due to the increase in the weight, I must suggest that people save up and get 2-piece rotors such as the AEM's or Wilwood kits. Anythinng else really isnt worth the money.