my bro has just sold his mk1 focus rs, tbh it was absolutely immaculate, no expense spared anywhere, it had a full 3" turbo back exhaust, FMIC, Forge Actuator, Forge 007 split dump valve (IIRC) re-map by a guy on there, we estimated it to be putting out approx 260-270 bhp as it had one of the best maps from the factory, which was then added to by the re-map
As a car on the road, very quick throughout the gears, very suprisingly lack of wheel spin, probably due to the bigger wheels, wider tyres and LSD
He has since sold it for the following reason, which after driving the car back from being mapped i fully understand
Running 1.5 bar boost, holding boost at 1.45 BAR, however even on light throttle it was wacking the boost in far too much, to the point it was dragging you towards the kerb, which for a driving enthusiast like my bro wasnt really suitable especially as he likes to enjoy his cars down country lanes
I blame the forge actuator, as a standard car with standard actuator it was extremely well behaved on a back road and controllable, with the forge it just went on steroids
Good luck, I didnt realise they were similar to insure as the 1*2's otherwise i may have bought it from him