Wind deflector - which one?

[Taz]

I actually took my leather one off last weekend, and can't honestly say I've noticed a significant difference.

Undecided whether it's worth the hassle of fitting an OEM one :?

what sort of job is it fitting a mesh 1? i looked at a zed today and it had a gimp 1 fitted, it looked rubbish

 

[firebobby]

There's a genuine one for a E89 on Gumtree for £75
http://www.gumtree.com/p/car-part-accessories/bmw-z4-e89-wind-deflector/1125304059

Another E89 here
http://www.gumtree.com/p/car-part-accessories/new-bmw-z4-2009-2014-wind-deflector-genuine-bmw-accessory/1122644783

Older one here
http://www.gumtree.com/p/car-part-accessories/bmw-z4-wind-deflector-for-2003-2008-model/1122636590