Went to change my son’s brakes on his 2009 g37 sedan and the oem I got for it do not fit. The calipers have an e on them I think. Any help identifying these and what brake pads to get would be majorly appreciated!

 

Those are considered "non-sport" brake calipers- as opposed to the "Sport" calipers which are larger and fixed.

That said, any parts source (chain store, dealer, Rockauto, etc.) will help you get a set of pads- just be sure they are for the "non-sport" brakes.