when i back out of the driveway in the morning, there's a weird vibrating noise coming from the front of the car while my car is reversing or while i'm stopped but still have the car in reverse...right when i put it neutral or drive or back into park, the noise goes away...i only hear it on a cold startup also...anyone has the same problem?
BTW, i have a 99 auto, with jus cone filter, fstb, H&R, & AGX

any help is appreciated.
thanks!

 

Sounds like something in the exhaust is rattling. I had a sim prob on my 95. There was a heat shield hitting the y-pipe. Bent it away no more noise.