I have a 2000 328Ci. If I purchase a rep M3 front bumper, will I need the brake ducts (http://www.ecstuning.com/ES129206/ & http://www.ecstuning.com/ES129205/) for a completely clean install? I know they are required for a clean install on an aftermarket M-Tech II bumper, but I'm unsure with the...

I'm installing this bumper on my car and I'm trying to figure out what brake ducts and fender liners fit it. There are like 6 different brake ducts listed, some say for m bumper, but not which bumper. The Mtech 2 uses long brake ducts, this bumper uses really short ones. Anyone have this bumper...