go for the dream science best out of the lot of them
got the best gains and can be mapped as many time as you want and can still add mods after mods with this only down side it is £499
if not that route go see stu/kenny @ msd or go to engine advantages to get paul to do a unichip/aftermarket mangement seen that on a 360bhp rs focus in fast ford few months back or go see rob @ scc he turns out some good rs focus !!!

mild mods de-cat ,ss cat back exhaust (mongoose),air filter
dv,too also reconmend you get a air/fuel ratio gauge and a electronic boost control to keep a close eye on things or it will melt again also should be running the car on 97 or higher octane ok !!!

then next stage would be cams, (ian howell area six)
cam pulleys, underdrive pulleys, and manifold (exhaust)