I have a 2010 G37x Coupe AWD. As many knows, the OEM rotor sucks and the car shakes in high speed. So I bought a nice one online for G37x but the dealer told me it doesn't fit, coupe uses bigger rotor. Is anyone here aware of the difference? Is the coupe part or AWD that actually makes the difference? Anywhere we can find the spec for such rotors?

Any help is much appreciated.

 

Here's the front rotor specs~


And the rear~

 

Thank you! I found rotor with part number Manufacturer Part #: 128.42095L, is that right? what does 128 stands for?

 

The S model with Akebono sport brakes uses larger rotor. If your G is not an S, you use the standard rotor which is likely the part listed above. Online you'll see a different part for Sport and Non Sport models.