Okay, I know this thread has been dead for a long time, but I've got to let you all know how it went down for me.
I tried this today, and to say the least, it's tough. CSTMIZR isn't lying when he said that the 45 degree angles had to be PERFECT. I couldn't get anything to line up well. However, I eventually pounded every corner into place and got it on, and it does make the turbo 'woosh' really awesome sounding.