What I am saying is that you can feel the same or more difference by changing brake pads. Also you have less unsprung weight for better handling and less weight for acceleration. The only time you have to go bigger on the rotor is when you are already have brake pads made for the heat and you are still getting brake fade. I am almost to that point in my MSP at some roadcourses. Hopefully the brake cooling ducts will help out this year.MakeMeGoFast said:I've got this. I noticed a huge difference, but then again I have a 02' ES. I went with the slotted rotors, Greenstuff pads( dont waste the money) and SS brakelines, so for me It was a huge upgrade. Dont care what anyone says. oh yeah I went with all four corners on this, 11 inch all the way around