08 front bumper and rear bumper

[bicsintegra]

for those of you who have changed your front bumper to the 08 sport bumper, did you also change the rear bumper? I do not see a significant difference if the bumpers or I have not noticed a big difference and I was wondering before I set aside the money to get both the front and rear is it worth it? Any help would be appreciated. If at all possible if anyone has pics of the rear bumper before and after the conversion I would appreciate it.
Thank You

[flex128]

I've read from past post that the 08 rear bumper cover won't fit on the 06-07 m35 unless you do some changes to your bumper itself i think you need to cut it shorter to clear for it to fit on

[bicsintegra]

thanks