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great mods!
yep, this new z4 is more a gt car than a sport car.....
You need also some chip or some box to tune your engine....Look at previous thread (2-3 months ago) and you will be able to get a box for 360bhp.....You will invalid your warranty, but You can try to improve things also with the engine....
PSS9 from bilstein are really good, but with m adaptive suspension I don't know if you can convert them to normal coilover systems....
Frncesco
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