I have an alty GLE KA24DE all stock, nothing modified (except maybe exhaust is aftermarket, not sure, i bought it that way) but other than that nothing modified that i know of.

When i hit high rpms (over 5,500) and near closer to redline, my car makes a fairly loud whistling sound that what i've been told sounds a lot like a turbocharger (from people usually racing me with equal poopy cars). It doesnt really sound like it to me, i just hear a somewhat faint whistle. What i think it might be is some belts or something, but i honestly dont know.

any got any ideas?

thanks