Originally Posted by mzbmw325i
the reason i ask for the difference on the H&R sport spring set is because the link below has the red sport spring type, i thought they were the race but it says sport, on tirerack they are black or something and it lists to drop 1.3 inches, where the red 1.5, i am leaning on them so i might pull the trigger this weekend.
a little update, i got a reply from turnermotorsport regardng the red sport springs, answer below:
"Disregard the color of the spring, it means nothing.
The difference is the drop and the rate.
50406: 190LB front, 343LB rear
29664: 180LB front, 285LB rear"