If you lower the car by 30 mm via lowering springs, you will loose 30 mm of suspension travel. The ride will be different (probably worse, certainly less comfy) , as the wheel's ability to "absorb" bumps will be reduced, maybe by 15 - 20%.Ok
Iv bought the b4s all round, still not sure what springs yet. Looking to lower 30 mm all round , while maintaining ride quality. Any recommendations out there. Also must have even ride height all round.