S-Tec also do a 'Mail In' service where you can send them your ECU and they'll send it back to you by return of post. You simply tell them what exhaust system you're running and about any other modifications you might have made and they'll reflash the ECU without you having to go anywhere near a...
On mine too.
Made to measure and fitted on site within minutes at JHS Racing in Bristol, highly recommended.
Went for the 3 line version, very good and neat.
I've just gone down the same route as you, Hel braided lines and EBC double H sintered pads. It's made a massive difference to braking power. I didn't rate the stock set up much, but now I've done this I realise how poor it actually was.