I have a 732i, fitted with the pre 83 nose. No big deal to change it if you got an old one it all fits. But I had to loose my headlight wipers since everything is just that little different. The shaft of the wiper motor is to short to fit the pre 83 front. Also the indicators are different. But it looks realy great. Of course I had also to take the penalty of a drag factor (CW value) which is worth by about 10%. With the original engine this meant a reduced top speed down from approx. 130mph to 120mph and a higher fuel consumption at high speeds. I have counteracted this by fitting an engine from an M1 which I found lying in the corner of a BMW tuning company. It goes like stink now. (161mph) an 0-60 in just over 6 sec. But also just 8mpg (Uk gallon) at speeds of over 130mph.