On previous cars I always went for individual H+R springs and bilstein dampers. This time I bought the suspension pack offered as a match between Bilstein dampers and Eibach springs in the Pro kit. The car was remapped (stg1) earlier this year and I had an H+R anti-roll kit fitted. The solid A/R bars firmed up the roll as expected. The pro-kit promoted a drop of 40-50mm, which should have dropped the car another 10-15mm. I was expecting something like Scott's A4 above. I think the eibach springs must only be a drop of 30 mm, as I can see no difference visually. Performance is a different story. There is no pitching or diving at speed, so the car turns in much quicker. The ride hasn't been compromised too much, although it is a little bumpier at slow speed on rough roads. Haven't hit any pot holes yet ! I should have gone for the H+R springs and got a 40mm drop all round. Your a4 sline already has a drop of 30mm...