i doubt it will help much, those springs probably are not much stiffer than stock, about all you might could do is get shorter shocks in case yours are currently compressed to much while driving~ but I dont think that will help.
Find out the rate of your stock springs vs your current ones, see how different they are.
2003 Cobra Vert (Redfire) #3938 of 5082 @ 05/27/2003
472rwhp/493rwtq -Modification List
- Dyno Sheet
2012 Mustang 3.7L M6 (Kona Blue)
2011 Ford Edge Sport (Red Metallic)