weird noise

MKTURBO3

New Member
Jun 8, 2007
93
0
0
NEWYORK
i hear a werid noise after 2k rpm sounds like woooooong noise and it gets louder the higher the rpm and after i drop below 2k it will go away this only wen im in local areas on highway it will go away after driving for about 15mins what could this be. i have about 600 miles on my rebuild ?