[Acg_27]

So I ordered a pair of front rotors from FCPEURO months ago, brake rotors type Zimmermann 34116854998 size 300x24mm for my 2007 328xi N51 sedan. After replacing my old rotors to the aftermarket ones I started noticing squeaking noise from the front wheels when i brake slowly to a complete stop & steering wheel started vibrating a little bit ever since. I thought i got the right sizes but when i went back to my order & check the same rotors i ordered it says "Part may not fit click to verify" I clearly didn't see that when I ordered them but I am a lil confuse because when I talked to customer service about the zimmermann i bought he said the rotors should fit and when i check the OEM front rotors it is size 312x24mm. Does it make any differences?? It would not be normal since i bought them last year on July. Please help !