[Number]

Are there any BMW sanctioned lowering kits? I wanna bring the stance down about an inch, but don't wanna void anything. Is the ACSchnitzer springs ok'd by BMW?

[Jason]

Originally Posted by Tremolo

Are there any BMW sanctioned lowering kits? I wanna bring the stance down about an inch, but don't wanna void anything. Is the ACSchnitzer springs ok'd by BMW?

The only BMW approved ones are its own parts. For example, the F30 M Performance springs.

See the catalog @ http://www.f30post.com/forums/showthread.php?t=659511

[Number]

Originally Posted by Jason

The only BMW approved ones are its own parts. For example, the F30 M Performance springs.

See the catalog @ http://www.f30post.com/forums/showthread.php?t=659511

Sux. I already got the Sport Line. So that's the same height as the M Performance springs correct?

I wanna lower it about an inch more than Sport Line.

[ModBargains.com]

You can also check out the H&R lowering springs. They come in two varieties -- Sport Spring and Super Sport Spring, with the latter being a more aggressive lowering.

H&R Sport Springs: lower the F30 by 1.2" front and 1.2" rear
H&R Super Sport Springs: lower the F30 by 1.75" front and 1.6" rear

[clarence]

Originally Posted by Tremolo

Is the ACSchnitzer springs ok'd by BMW?

According to AC's website, it is ok'd by BMW. Not sure abt USA cos AC is represented in quite a number of countries by their respective BMW dealers/distributors.
Not sure whether Alpina will make a spring kit, but if it does then again it has full factory backing.

[ZORRO_ya]

I found Eibach springs!
front - 25-30mm
rear - 25mm

F30 Eibach springs