ST170 Mods

[bac]

Greetings All,
This is my first post in the Focus forum - my previous posts have all been to do with selling my KF Laser TX3 Turbo. Although the Laser is not yet sold, an opportunity came up at the right price and so I'm now the proud owner of a Focus ST170.

I've only had the car for a couple of days, but love it already. While it doesn't have the sheer grunt of my turbo Laser, it's a damn site nicer inside and does play a nice song as the revs rise.

Of course, I won't be able to leave the car alone for long and have already done a quick trawl through the forums to find out what the best bang for the buck mods are for the ST170. Two of the most popular seem to be underdrive pulleys and an ECU reflash with a more aggressive tune. Before I go too far down either path, I'm hoping some other been-there-done-that ST170 owners can help me out with a bit of their combined wisdom.

Firstly, after trawling the web for a while, I came across these pulleys. Are they the right ones for the ST170, and/or is there something better available elsewhere at a similar cost?

Secondly, what's the consensus on remapping the ST170 ECU? The only product I've found that is available at a reasonable price is the BlueFin. I take it I can't borrow a BlueFin unit from another ST170 owner as they're software locked to a particular car somehow?

Is there something better out there I should consider? I've read that the DreamScience Stratagem has better tunes than the BlueFin but it is very pricey. I also thought I came across a post on these forums from someone who said they had access to Ford factory development tunes for the ST170. Is this right or am I barking up the wrong tree?

Sorry for all the noob questions but you've got to start somewhere...

Cheers,
Brian