Here's a breakdown of the whole system, if that's what's required, for a 2008 1.3 petrol engined car. Add fitting, which shouldn't be more than ~£75, even with the dreaded VAT.
http://www.onlineautomotive.co.uk/Basket.aspx
Simplest thing is to put car reg into box at top left.
my OH has a kia and he's always having to pay alot for repairs at the kia garage and so he's started taking it elsehwhere, he also had the brakes done at a kwik fit and it was £600, he went balastic, they reduced the bill pretty quick!
oh bloody hell don't go to kwik fit they made a right pigs ear of the job too and a steering spring or something pinged off the next day when he was doing 70+ on the M61!