I had this converstion done about 4 months ago, and can recommend it being carried out, this has completely transformed my car, lot of money, but car runs faultlessly (inc low speed)
paid extra for uprated clutch, uprated big ends, and valve retainers, also went for R500 non cat exhust, 13" 8 spoke wheels and cr500 tyres
i went from standard 1.6 (115bhp) to the 160bhp, already got 6 speed box, so a real flyer now LOVE IT!
next stop uprated braked i think, or was that a aero screen?, or carbon wings and arches?... mmmmmm
maybe should have got an R400..... still its only money
vinnie