I previously had an AEW silencer on my 535. Sold it for the exact same reason and I bought another silencer with a removable baffle in an easy to find size.
The sound of the stock baffle was horrible so after some tests I found one which gives a very nice sound with a correct level.
The silencer with the stock baffle :
A side view of the silencer. The inox exhaust tube comes from H shop but modified with a curved tube welded at the end.
The baffle provided with the silencer with an horrible whistling sound ! But quiet...
I tried to bend the metal slats... The bike was still whistling... but louder
The baffle on the right have a percussive metallic sound, not very nice.
The baffle on the left which looks like a catalytic converter element have the perfect sound