I see that many coils claim some lowering (1.2)" for example, but on real, thatīs quite different.
Can we made a list of lowering springs down data?

 

go for ta gf210 by tanabe.im using ta nf210 they do lower ta car but they are kinda soft n fells like stock to me.the gf210 are red in colour.

 

actually all of tanabe's springs are red in color now. they are also double powder coated for better resistance. I have the gf210's and i love the ride. they arent a super drop like the nf210's but they are stiffer so u get more of an aggressive feeling. those are the springs i recommend. they are also progressive (meaning that at slow speeds its like a stock spring but when u accelerate and put force against the body of the car, the springs tension up so u have a better feeling at higher speeds.)