I just had some mods done to my wrx today; vh34, turbo back and a cobb access port. Drove home about a half hour or so. When I put it in reverse there is some wierd noises coming from the drive train. Sounds like its loose. Does anyone know if they would for any reason have to loosen the drive train or loosen the motor mounts to do this work? I want to go back to this place in the AM with some ammo! Any help would be much appreciated!