My headers were replaced at the last service as the valve was squeaking. I was told it was £1800 -worth. I noticed last weekend the replacement has now started squeaking, about 3k miles later.
How the hell can a dealer tell you a set of headers are £1800, and keep a straight face at the same time? You could buy a set of titanium Akra headers for a third of that price, allowing the bike to actually breathe and perform properly.