There is certainly an improvement over standard my friend
what I'm saying is it isn't enough for what I personally wanted to achieve through upgrading.
£400 for new set of discs, true expensive, but not really, to upgrade to greenstuff pads and EBC drileld and slotted discs all round is about the same so it all seems relative to me
Put in this way, JCW is the best option if you love your warranty