I know its been flogged to death but just want to ask those who have recently upgraded is it really worth the gold without being bias and what sort of cost did you pay?
Costs you can see on B&C's online shop, depends on the year of your car IIRC.
Drop SimonK a note, he's got it and says it was well worth it. He's done a lot of track & road time in the car since, so will be able to give you a well-balanced opinion of the pros and cons.