Strange exhaust rattle

[JurassicF]

Since the cross braces were replaced, which necessitated exhaust removal, I have an odd vibration/rattle which sounds as if it is through the exhaust.

It is very intermittent, only on 1/3rd throttle and at exactly 1500 rpm and sounds like a quick rattle which lasts for 1 second only. Heavy acceleration or light throttle application does not trigger the sound.

I have contacted the garage and they are 100% sure everything is tightened up, unfortunately it's a 1.5 hour journey for me to take it back to have checked and so intermittent that it cannot be something loose otherwise I would hear it on start up or revving in the garage. I had hoped it would be just the exhaust settling in but seems not the case.

Anyone else experienced this?

[Alasdair63]

I had a noise like you after my exhaust on my v6 was removed, turned out to be the rectangular plate was fitted back upside down, it’s located about the middle of the car.