Well if you go with the Hasport mounts. I would suggest going with the race compond bushings. The race compound is the same firmness as place racing and most of the others. But Hasport decided to make a softer compound to lesson vibration. But I managed to tear up those bushings in the first 3 months of my swap. I went with the race compound and have had no more problems. Here are some pics of the street compound bushings that lasted me all of 3 months.