Grab out a ruler or tape measure man and measure your current tyre to guard gaps. Subtract 35mm from that and gauge it. Then try 50mm. That'll give you a rough idea. 50mm is fine I'm sure though. No scrubbing. Unless you went 65mm drop with Lovells Super Lows which are the lowest spring you can get to my knowledge, you may scrub then. 35mm drop won't bottom out. 50mm won't bottom out too much. Thing is, the shocks will wear out a little faster over time now due to the added stress they are under. However when that happens just grab some Koni shocks or something ;) I probably would guess if your contemplating in dropping more than 35-40mm, you would have to change your shocks at the same time. Theres a settling period with springs....(especially the lower quality)..If going the greater drop....better getting the combo first time......dont want a 'bouncy bouncy' ride My previous car had H&R(German) springs 35mm drop ....highly recommended..... Brad