For those of you that have installed one on your car. Were you able to use the rubber pieces that is supposedly able to go into where the factory clips were? I must've tried every single combo there is to try to get this diffuser to use all the hardware but could not. It was supposed to be a one hour job, but turned out to be about a 3-4 hour job for me trying to get it to fit the right way. It's installed now, but I just want to perhaps hear feedback or maybe see some pics of the mounting points so I can compare it to mine. Thanks.