I have a 07 Acura Tl type-s AT only 110000km on it, when i shift into drive or reverse and Im not moving i can hear a rattle possibly coming from the exhaust pipe head shields area or near the transmission when Im moving the rattle is gone it also doesn't rattle in park. Just curious if anyone else has had this issue before? Thanks

 

Very likely it's the heatshield around the catalytic converter.

 

^^^ Agree and a very good guess.