Going down a particularly 'interesting' lane yesterday I entered a off camber right hander at around 70mph and could hear a strange rubbing sounds. Once parked up I noticed that I've 'shaved' a layer off one side of my splitter (basically through the laquer and down to the weave). I presume this is down to the suspension being a touch too soft. Has anyone at any point either replaced the springs offered in coilover kits for a harder ones or put a different weight of oil in the dampers to stiffen this us, or tried another method? Stronger anti roll bars etc? I'm currently running the standard Bilstien setup which has done 5k on the car now.