I called Moroso and talked to them about these springs and of course they said for drag strip use only. They also said that the driver side spring is stiffer than the passenger side, so im not sure how that would work on the street. The only person I know that is running these springs is Mike Krutz with PMAC. He has had good luck with them. Sorry that's all I know. I was going to buy a set but decided againt it because I do some street drivng.
Good Luck