I was doing a Ypipe swap a few weeks ago and jacked up the front of the car. after we put the car back down i have an extremely loud rattle in the dash area. it sounds like its coming from behind the ashtray and it gets stronger when i apply partial throttle. i'm not sure if something was moved in the engine bay right by the firewall or if its coming from inside the car but its so loud at times that i can barely hear people on my cell phone. anyone had a similar rattle before? any suggestions would be much appreciated, thanks.

 

your y pipe is hitting your cross member most likley i think this is in the stickys but im not sure.