I don't know if this is old news to some of you, but I've noticed that when I hit the gas for a WOT blast, sometimes I hear a whining noise after I back off on the throttle completely, which lasts up to 2 seconds. yesterday was the first time that I reved the engine up to about 4,000 RPM while in park (not something I usually do) in order to get someone's attention who was waiting for me on the other side of a parking lot, and after stabbing the pedal and letting off, I heard that whining sound again while the engine RPM came back down to idle.

Does anyone experience the same thing w/their Marauder? And can anyone tell me what that is, or if it's something to worry about. if it is, then i want to get it fixed now before I perform anymore mods to my MM since my warantee is still in effect w/what I've done to the car so far according to the service manager I've spoken to.