more importantly, why the HELL would you put lowering springs on a bmw? Keep the height stock unless youre going to go to bilstein coilovers or something quality. this isn't a fucking honda...this isn't even a cheap bmw, it's a fucking e90. smh. HAI GUYZ LETS BUY A $15K+ CAR AND THEN 200 DOLLAR LOWER SPINRGS. I am about 95% sure this is owned by a 16 year old.

edit: at least you bought decent tires for tracking. i give you an ounce of credit