i know alot of people here have both versions on there cars and alot of people ask about them alot as well so i thought i would post a pic of the springs, not on the car since my car is not drivable but here are the springs side by side.... for those who dont know the sportlines are the red and the pro kit are the black.....http://i187.photobucket.com/albums/x...rocpics010.jpg ......now here are the measurements i got. the pro kit has not been on the car or used yet. the sports have been on my car for about 7 years but only driven on for about 10 miles. the springs themselves are 12" tall for the front sportlines after being settled. the pro kits are 12 5/8" un settled. the rears are 14 1/2" tall for the settled sports and 14 3/4" for the pro kit. i just swapped the rears now and with the sportlines settled i had 26 7/8" from the ground to my fender. and with un settled pro kit in i am at 27 1/2". in the pic i posted you can see why the rears for the sportlines are so much softer then the pro kit. the front springs look the same but the pro kit has a half coil more then the sportline. and besides the sportlines being to soft i decided to swap them out fro the pro kit because my stock sagging iroc springs in the front i had 26" from ground to the fender. the sportlines were 24 1/2" they dropped my car alot and when i first put them on they went to about 25 1/4" or 25 1/2" but i never even drove on the springs and over time they went to 24 1/2" junk!!!!at first i thought it was my older spohn a arms but turned out it wasnt them. it was the springs. hope this helps at least 1 person here...lol

also dont pay any attention to the glock behind the springs in the picture......lol