E38 lowering advice

[slasH 4]

Hi All, im looking to lower the ride height on my e38 728i 2000

I have found these

https://www.amazon.com/dp/B00C7LWVN4/ref=dra_a_rv_ff_fx_xx_P2000_1000?tag=dradisplay-20&ascsubtag=eda9bcb41f81db0c33fb0a52f5ff97c8_S

H&R - But these dont specify for 728i - so will these work? anyone have experience with these installed on a 728?

 

and this one

 

http://www.adenstyres.co.nz/products/bmw-7-series-cobra-lowering-springs?variant=4014344451

Cobra - specifically made for 728i

 

Any reviews on these springs in general? I have read mixed reviews online for different car makes but none for bmw.

 

 

or if anyone has any other recommendations please let me know.

Also, how much quicker will the OEM suspension wear our? (50% faster etc?)

 

Thanks in advance!