the old one dogbone still in good condition, main reason why i change it, course exhaust sometimes on cold engine have noise, looks like touching chassis, i be at AMD but he can`t find anything, so that why i buy dogbone and replace it, and noise gone another good point now , i feel less play when change the gear
about vibrations can say may a bit more feel vibration on stering wheel on idle , but nothing horrible
Exactly why i just got new bolts to replace my dog bone, engine must move loads for it to touch, as by looking by eye it's no where near.
Again all this after after having my downpipe fitted.