I normally do compare however these rotors were already on the car once i put new pads and cailbers on i check placement and noticed it did not line up. i got the rotors after the fact and they too were incorrect. i just bought this thing in march and have been pouring money all over it. when i did the timing the spark plugs were incorrect but barely used almost like new. hopefully didnt do any damage. so it does not surprise my to find other incorrect parts. back to my question what are the correct rotor size or where can they be found.They probably gave you incorrect rotors for an Advance Trac equipped Focus. Not surprising, though. Summit can't get their **** straight to save their life. NEVER trust Summit's car parts finder based on simply entering your vehicle year, make, model, etc. Don't really trust ANY car parts finder if you drive an SVT, as they will almost always be incorrect. I ALWAYS to a side by side comparison before installing new parts.
I put the Centric rotors and Hawk HPS pads on all four corners about 6 weeks ago and they have been rock solid. I actually wait a bit longer to brake at stops just to see how solid the brakes are on this car and they amaze me every time.MANY of us have been using Centric rotors with no issues including myself - as a DD, auto-x and track use car. These rotors are the best bang for the buck. Pair up a quality Hawk HPS pad and your'e good for 40k miles of killer braking. :thumbup: