this is just my opinion....I currently am running the Mazdaspeed suspension on my 5....it did sag in the rear as noted, I used spacers to raise it even with the front. Handles better, rides like stock...my only problem would be, guessing that the 5 is about 500 (not sure) pounds heavier, and occasionally seating 4 adult passengers ( about 600 more pounds) that equals to about 1100 extra poundage...causing my 5 to rub enough to cause my passengers concern and me to tense up at every bump....I was mainly experimenting with the speed suspension, and now know my answer (to each his own) as for me, I had originally wanted to go lower as it was, so now most likely after my guests leave, this coming September I probably will install some H&Rs (to better handle the weight) , but I'll leave the MS3 shocks...and also look into getting some new wheels ( my offset is currently 42, to far out for my taste anyways)....hope that helps...(confused) hope that made sense....