Had my magnex for year and could hear this god awful high pitched rattling at certain revs. This developed into a constant rattle.
It was the baffles in the mid section that had gone. So I had to pay for a new centre section while magnex refunded me for mine.
Rattling sorted.
6 months later...
Driving along today, reached 3.5k rpm and heard the same sound. This then spread to between 3k and 4k.
Whoop!

That is all.
It was the baffles in the mid section that had gone. So I had to pay for a new centre section while magnex refunded me for mine.
Rattling sorted.
6 months later...
Driving along today, reached 3.5k rpm and heard the same sound. This then spread to between 3k and 4k.
Whoop!
That is all.