So what to do? A good rule of thumb to follow is the less the vehicle is lowered, the less the ride comfort will be effected! Depending on the vehicle, both Eibach and H&R have options that can fit a variety of needs (lets use a newer VW Golf as an example):
H&R Sport Spring Set
H&R Race Spring Set
For the least amount of lowering (and the closest to "stock" ride comfort, consider the Eibach Pro-Kit (1" drop front and rear).
For a "sportier" ride with a lower stance, look at the H&R Sport Spring kit (1.5" front and 1.4" rear).
Lastly, for the best improvement in handling for track applications, consider the H&R Race Spring kit (2.0" front and 1.75" rear).
Take a look at all the testing we've done on lowering springs for the complete picture!